#52 SDRPlay RSP tuner support. (#1453)

Co-authored-by: Dennis Sheirer <dsheirer@github.com>

.github/workflows/gradle.yml

@@ -22,10 +22,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - name: Set up JDK 17
+      - name: Set up JDK 19
         uses: actions/setup-java@v2
         with:
-          java-version: '17'
+          java-version: '19'
           distribution: 'liberica'
           java-package: 'jdk+fx'
       - name: Build with Gradle

.idea/misc.xml

@@ -4,7 +4,7 @@
   <component name="FrameworkDetectionExcludesConfiguration">
     <file type="web" url="file://$PROJECT_DIR$" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="liberica-19.0.1.fx" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_19_PREVIEW" project-jdk-name="liberica-19.0.1.fx" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

artifacts/sdrplay-api-headers/README.txt

@@ -0,0 +1,36 @@
+Auto-generating Java code from SDRPlay API using jextract.
+
+Note: the api headers in the 3.11 folder are equivalent to the 3.08 headers.  The only
+difference from the 3.07 headers is the addition of the boolean 'valid' flag to DeviceT structure.
+
+1. Download JDK19 compatible build of jextract JDK: https://jdk.java.net/jextract/
+2. If generating on windows platform, modify the sdrplay_api.h to remove the windows
+   pieces of the file.  Specifically:
+2a. Comment out these lines but leave the *HANDLE typedef:
+
+//#if defined(_M_X64) || defined(_M_IX86) || defined(_M_ARM64)
+//#include "windows.h"
+//#elif defined (__GNUC__)
+typedef void *HANDLE;
+//#endif
+
+//#ifndef _SDRPLAY_DLL_QUALIFIER
+//#if !defined(STATIC_LIB) && (defined(_M_X64) || defined(_M_IX86) || defined(_M_ARM64))
+//#define _SDRPLAY_DLL_QUALIFIER __declspec(dllimport)
+//#elif defined(STATIC_LIB) || defined(__GNUC__)
+//#define _SDRPLAY_DLL_QUALIFIER
+//#endif
+//#endif  // _SDRPLAY_DLL_QUALIFIER
+
+2b. Remove the '_SDRPLAY_DLL_QUALIFIER' from in front of the method declarations
+
+2c. Change the 3.11 version string to 3.08 either in the header file, or in the generated java class
+
+3. Open command prompt to the root source code where the generated files should be placed:
+..\SDRtrunk\sdrplay-api\src\main\java
+
+4. Generate the code:
+c:\Users\Denny\Downloads\jdk-19-ea2-panama\bin\jextract "C:\Users\Denny\git\sdrtrunk\sdrplay-api\api\v3_11\sdrplay_api.h" -l libsdrplay_api --source
+
+5. Do this for all versions of the API.
+

artifacts/sdrplay-api-headers/v3_07/sdrplay_api.h

@@ -0,0 +1,229 @@
+#ifndef SDRPLAY_API_H
+#define SDRPLAY_API_H
+
+#include "sdrplay_api_dev.h"
+#include "sdrplay_api_rx_channel.h"
+#include "sdrplay_api_callback.h"
+
+//#if defined(_M_X64) || defined(_M_IX86)
+//#include "windows.h"
+//#elif defined (__GNUC__)
+typedef void *HANDLE;
+//#endif
+
+//#ifndef _SDRPLAY_DLL_QUALIFIER
+//#if !defined(STATIC_LIB) && (defined(_M_X64) || defined(_M_IX86))
+//#define _SDRPLAY_DLL_QUALIFIER __declspec(dllimport)
+//#elif defined(STATIC_LIB) || defined(__GNUC__)
+//#define _SDRPLAY_DLL_QUALIFIER
+//#endif
+//#endif  // _SDRPLAY_DLL_QUALIFIER
+
+// Application code should check that it is compiled against the same API version
+// sdrplay_api_ApiVersion() returns the API version 
+#define SDRPLAY_API_VERSION                   (float)(3.07)
+
+// API Constants
+#define SDRPLAY_MAX_DEVICES                   (16)
+#define SDRPLAY_MAX_TUNERS_PER_DEVICE         (2)
+
+#define SDRPLAY_MAX_SER_NO_LEN                (64)
+#define SDRPLAY_MAX_ROOT_NM_LEN               (32)
+
+#define SDRPLAY_RSP1_ID                       (1)
+#define SDRPLAY_RSP1A_ID                      (255)
+#define SDRPLAY_RSP2_ID                       (2)
+#define SDRPLAY_RSPduo_ID                     (3)
+#define SDRPLAY_RSPdx_ID                      (4)
+
+// Enum types
+typedef enum
+{
+    sdrplay_api_Success               = 0,
+    sdrplay_api_Fail                  = 1,
+    sdrplay_api_InvalidParam          = 2,
+    sdrplay_api_OutOfRange            = 3,
+    sdrplay_api_GainUpdateError       = 4,
+    sdrplay_api_RfUpdateError         = 5,
+    sdrplay_api_FsUpdateError         = 6,
+    sdrplay_api_HwError               = 7,
+    sdrplay_api_AliasingError         = 8,
+    sdrplay_api_AlreadyInitialised    = 9,
+    sdrplay_api_NotInitialised        = 10,
+    sdrplay_api_NotEnabled            = 11,
+    sdrplay_api_HwVerError            = 12,
+    sdrplay_api_OutOfMemError         = 13,
+    sdrplay_api_ServiceNotResponding  = 14,
+    sdrplay_api_StartPending          = 15,
+    sdrplay_api_StopPending           = 16,
+    sdrplay_api_InvalidMode           = 17,
+    sdrplay_api_FailedVerification1   = 18,
+    sdrplay_api_FailedVerification2   = 19,
+    sdrplay_api_FailedVerification3   = 20,
+    sdrplay_api_FailedVerification4   = 21,
+    sdrplay_api_FailedVerification5   = 22,
+    sdrplay_api_FailedVerification6   = 23,
+    sdrplay_api_InvalidServiceVersion = 24
+} sdrplay_api_ErrT;
+
+typedef enum
+{
+    sdrplay_api_Update_None                        = 0x00000000,
+
+    // Reasons for master only mode 
+    sdrplay_api_Update_Dev_Fs                      = 0x00000001,
+    sdrplay_api_Update_Dev_Ppm                     = 0x00000002,
+    sdrplay_api_Update_Dev_SyncUpdate              = 0x00000004,
+    sdrplay_api_Update_Dev_ResetFlags              = 0x00000008,
+
+    sdrplay_api_Update_Rsp1a_BiasTControl          = 0x00000010,
+    sdrplay_api_Update_Rsp1a_RfNotchControl        = 0x00000020,
+    sdrplay_api_Update_Rsp1a_RfDabNotchControl     = 0x00000040,
+
+    sdrplay_api_Update_Rsp2_BiasTControl           = 0x00000080,
+    sdrplay_api_Update_Rsp2_AmPortSelect           = 0x00000100,
+    sdrplay_api_Update_Rsp2_AntennaControl         = 0x00000200,
+    sdrplay_api_Update_Rsp2_RfNotchControl         = 0x00000400,
+    sdrplay_api_Update_Rsp2_ExtRefControl          = 0x00000800,
+
+    sdrplay_api_Update_RspDuo_ExtRefControl        = 0x00001000,
+
+    sdrplay_api_Update_Master_Spare_1              = 0x00002000,
+    sdrplay_api_Update_Master_Spare_2              = 0x00004000,
+
+    // Reasons for master and slave mode
+    // Note: sdrplay_api_Update_Tuner_Gr MUST be the first value defined in this section!
+    sdrplay_api_Update_Tuner_Gr                    = 0x00008000,
+    sdrplay_api_Update_Tuner_GrLimits              = 0x00010000,
+    sdrplay_api_Update_Tuner_Frf                   = 0x00020000,
+    sdrplay_api_Update_Tuner_BwType                = 0x00040000,
+    sdrplay_api_Update_Tuner_IfType                = 0x00080000,
+    sdrplay_api_Update_Tuner_DcOffset              = 0x00100000,
+    sdrplay_api_Update_Tuner_LoMode                = 0x00200000,
+
+    sdrplay_api_Update_Ctrl_DCoffsetIQimbalance    = 0x00400000,
+    sdrplay_api_Update_Ctrl_Decimation             = 0x00800000,
+    sdrplay_api_Update_Ctrl_Agc                    = 0x01000000,
+    sdrplay_api_Update_Ctrl_AdsbMode               = 0x02000000,
+    sdrplay_api_Update_Ctrl_OverloadMsgAck         = 0x04000000,
+
+    sdrplay_api_Update_RspDuo_BiasTControl         = 0x08000000,
+    sdrplay_api_Update_RspDuo_AmPortSelect         = 0x10000000,
+    sdrplay_api_Update_RspDuo_Tuner1AmNotchControl = 0x20000000,
+    sdrplay_api_Update_RspDuo_RfNotchControl       = 0x40000000,
+    sdrplay_api_Update_RspDuo_RfDabNotchControl    = 0x80000000,
+} sdrplay_api_ReasonForUpdateT;
+
+typedef enum
+{
+    sdrplay_api_Update_Ext1_None                   = 0x00000000,
+
+    // Reasons for master only mode 
+    sdrplay_api_Update_RspDx_HdrEnable             = 0x00000001,
+    sdrplay_api_Update_RspDx_BiasTControl          = 0x00000002,
+    sdrplay_api_Update_RspDx_AntennaControl        = 0x00000004,
+    sdrplay_api_Update_RspDx_RfNotchControl        = 0x00000008,
+    sdrplay_api_Update_RspDx_RfDabNotchControl     = 0x00000010,
+    sdrplay_api_Update_RspDx_HdrBw                 = 0x00000020,
+
+    // Reasons for master and slave mode
+} sdrplay_api_ReasonForUpdateExtension1T;
+
+typedef enum
+{
+    sdrplay_api_DbgLvl_Disable       = 0,
+    sdrplay_api_DbgLvl_Verbose       = 1,
+    sdrplay_api_DbgLvl_Warning       = 2,
+    sdrplay_api_DbgLvl_Error         = 3,
+    sdrplay_api_DbgLvl_Message       = 4,
+} sdrplay_api_DbgLvl_t;
+
+// Device structure 
+typedef struct 
+{
+    char SerNo[SDRPLAY_MAX_SER_NO_LEN];
+    unsigned char hwVer;
+    sdrplay_api_TunerSelectT tuner;
+    sdrplay_api_RspDuoModeT rspDuoMode;
+    double rspDuoSampleFreq;
+    HANDLE dev;
+} sdrplay_api_DeviceT;
+
+// Device parameter structure
+typedef struct 
+{
+    sdrplay_api_DevParamsT       *devParams;
+    sdrplay_api_RxChannelParamsT *rxChannelA;
+    sdrplay_api_RxChannelParamsT *rxChannelB;
+} sdrplay_api_DeviceParamsT;
+
+// Extended error message structure
+typedef struct 
+{
+    char file[256];
+    char function[256];
+    int  line;
+    char message[1024];
+} sdrplay_api_ErrorInfoT;
+
+// Comman API function types
+typedef sdrplay_api_ErrT        (*sdrplay_api_Open_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_Close_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_ApiVersion_t)(float *apiVer);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_LockDeviceApi_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_UnlockDeviceApi_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_GetDevices_t)(sdrplay_api_DeviceT *devices, unsigned int *numDevs, unsigned int maxDevs);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_SelectDevice_t)(sdrplay_api_DeviceT *device);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_ReleaseDevice_t)(sdrplay_api_DeviceT *device);    
+typedef const char*             (*sdrplay_api_GetErrorString_t)(sdrplay_api_ErrT err);
+typedef sdrplay_api_ErrorInfoT* (*sdrplay_api_GetLastError_t)(sdrplay_api_DeviceT *device);
+typedef sdrplay_api_ErrT        (*sdrplay_api_DisableHeartbeat_t)(void);
+
+// Device API function types
+typedef sdrplay_api_ErrT        (*sdrplay_api_DebugEnable_t)(HANDLE dev, sdrplay_api_DbgLvl_t dbgLvl); 
+typedef sdrplay_api_ErrT        (*sdrplay_api_GetDeviceParams_t)(HANDLE dev, sdrplay_api_DeviceParamsT **deviceParams); 
+typedef sdrplay_api_ErrT        (*sdrplay_api_Init_t)(HANDLE dev, sdrplay_api_CallbackFnsT *callbackFns, void *cbContext); 
+typedef sdrplay_api_ErrT        (*sdrplay_api_Uninit_t)(HANDLE dev);
+typedef sdrplay_api_ErrT        (*sdrplay_api_Update_t)(HANDLE dev, sdrplay_api_TunerSelectT tuner, sdrplay_api_ReasonForUpdateT reasonForUpdate, sdrplay_api_ReasonForUpdateExtension1T reasonForUpdateExt1);
+typedef sdrplay_api_ErrT        (*sdrplay_api_SwapRspDuoActiveTuner_t)(HANDLE dev, sdrplay_api_TunerSelectT *tuner, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+typedef sdrplay_api_ErrT        (*sdrplay_api_SwapRspDuoDualTunerModeSampleRate_t)(double *currentSampleRate);
+typedef sdrplay_api_ErrT        (*sdrplay_api_SwapRspDuoMode_t)(sdrplay_api_DeviceT *currDevice, sdrplay_api_DeviceParamsT **deviceParams,
+                                                                sdrplay_api_RspDuoModeT rspDuoMode, double sampleRate, sdrplay_api_TunerSelectT tuner,
+                                                                sdrplay_api_Bw_MHzT bwType, sdrplay_api_If_kHzT ifType, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+
+// API function definitions
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    // Comman API function definitions
+    sdrplay_api_ErrT        sdrplay_api_Open(void);
+    sdrplay_api_ErrT        sdrplay_api_Close(void);
+    sdrplay_api_ErrT        sdrplay_api_ApiVersion(float *apiVer);
+    sdrplay_api_ErrT        sdrplay_api_LockDeviceApi(void);
+    sdrplay_api_ErrT        sdrplay_api_UnlockDeviceApi(void);
+    sdrplay_api_ErrT        sdrplay_api_GetDevices(sdrplay_api_DeviceT *devices, unsigned int *numDevs, unsigned int maxDevs);
+    sdrplay_api_ErrT        sdrplay_api_SelectDevice(sdrplay_api_DeviceT *device);
+    sdrplay_api_ErrT        sdrplay_api_ReleaseDevice(sdrplay_api_DeviceT *device);
+    const char*             sdrplay_api_GetErrorString(sdrplay_api_ErrT err);
+    sdrplay_api_ErrorInfoT* sdrplay_api_GetLastError(sdrplay_api_DeviceT *device);
+    sdrplay_api_ErrT        sdrplay_api_DisableHeartbeat(void); // Must be called before sdrplay_api_SelectDevice()
+
+    // Device API function definitions
+    sdrplay_api_ErrT        sdrplay_api_DebugEnable(HANDLE dev, sdrplay_api_DbgLvl_t enable);
+    sdrplay_api_ErrT        sdrplay_api_GetDeviceParams(HANDLE dev, sdrplay_api_DeviceParamsT **deviceParams);
+    sdrplay_api_ErrT        sdrplay_api_Init(HANDLE dev, sdrplay_api_CallbackFnsT *callbackFns, void *cbContext);
+    sdrplay_api_ErrT        sdrplay_api_Uninit(HANDLE dev);
+    sdrplay_api_ErrT        sdrplay_api_Update(HANDLE dev, sdrplay_api_TunerSelectT tuner, sdrplay_api_ReasonForUpdateT reasonForUpdate, sdrplay_api_ReasonForUpdateExtension1T reasonForUpdateExt1);
+    sdrplay_api_ErrT        sdrplay_api_SwapRspDuoActiveTuner(HANDLE dev, sdrplay_api_TunerSelectT *currentTuner, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+    sdrplay_api_ErrT        sdrplay_api_SwapRspDuoDualTunerModeSampleRate(HANDLE dev, double *currentSampleRate);
+    sdrplay_api_ErrT        sdrplay_api_SwapRspDuoMode(sdrplay_api_DeviceT *currDevice, sdrplay_api_DeviceParamsT **deviceParams,
+                                                                              sdrplay_api_RspDuoModeT rspDuoMode, double sampleRate, sdrplay_api_TunerSelectT tuner,
+                                                                              sdrplay_api_Bw_MHzT bwType, sdrplay_api_If_kHzT ifType, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //SDRPLAY_API_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_callback.h

@@ -0,0 +1,78 @@
+#ifndef SDRPLAY_API_CALLBACK_H
+#define SDRPLAY_API_CALLBACK_H
+
+// Event callback enums
+typedef enum
+{
+    sdrplay_api_Overload_Detected     = 0,
+    sdrplay_api_Overload_Corrected    = 1,
+} sdrplay_api_PowerOverloadCbEventIdT;
+
+typedef enum
+{
+    sdrplay_api_MasterInitialised      = 0,
+    sdrplay_api_SlaveAttached          = 1,
+    sdrplay_api_SlaveDetached          = 2,
+    sdrplay_api_SlaveInitialised       = 3,
+    sdrplay_api_SlaveUninitialised     = 4,
+    sdrplay_api_MasterDllDisappeared   = 5,
+    sdrplay_api_SlaveDllDisappeared    = 6,
+} sdrplay_api_RspDuoModeCbEventIdT;
+
+typedef enum
+{
+    sdrplay_api_GainChange            = 0,
+    sdrplay_api_PowerOverloadChange   = 1,
+    sdrplay_api_DeviceRemoved         = 2,
+    sdrplay_api_RspDuoModeChange      = 3,
+} sdrplay_api_EventT;
+
+// Event callback parameter structs
+typedef struct 
+{
+    unsigned int gRdB;
+    unsigned int lnaGRdB;
+    double currGain;
+} sdrplay_api_GainCbParamT;
+
+typedef struct 
+{
+    sdrplay_api_PowerOverloadCbEventIdT powerOverloadChangeType;
+} sdrplay_api_PowerOverloadCbParamT;
+
+typedef struct 
+{
+    sdrplay_api_RspDuoModeCbEventIdT modeChangeType;
+} sdrplay_api_RspDuoModeCbParamT;
+
+// Event parameters overlay
+typedef union
+{
+    sdrplay_api_GainCbParamT          gainParams;
+    sdrplay_api_PowerOverloadCbParamT powerOverloadParams;
+    sdrplay_api_RspDuoModeCbParamT    rspDuoModeParams;
+} sdrplay_api_EventParamsT;
+
+// Stream callback parameter structs
+typedef struct 
+{
+    unsigned int firstSampleNum;
+    int grChanged;
+    int rfChanged;
+    int fsChanged;
+    unsigned int numSamples;
+} sdrplay_api_StreamCbParamsT;
+
+// Callback function prototypes
+typedef void (*sdrplay_api_StreamCallback_t)(short *xi, short *xq, sdrplay_api_StreamCbParamsT *params, unsigned int numSamples, unsigned int reset, void *cbContext); 
+typedef void (*sdrplay_api_EventCallback_t)(sdrplay_api_EventT eventId, sdrplay_api_TunerSelectT tuner, sdrplay_api_EventParamsT *params, void *cbContext); 
+
+// Callback function struct
+typedef struct 
+{
+    sdrplay_api_StreamCallback_t StreamACbFn;
+    sdrplay_api_StreamCallback_t StreamBCbFn;
+    sdrplay_api_EventCallback_t  EventCbFn;
+} sdrplay_api_CallbackFnsT;
+
+#endif //SDRPLAY_API_CALLBACK_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_control.h

@@ -0,0 +1,55 @@
+#ifndef SDRPLAY_API_CONTROL_H
+#define SDRPLAY_API_CONTROL_H
+
+// Control parameter enums
+typedef enum
+{
+    sdrplay_api_AGC_DISABLE  = 0,
+    sdrplay_api_AGC_100HZ    = 1,
+    sdrplay_api_AGC_50HZ     = 2,
+    sdrplay_api_AGC_5HZ      = 3,
+    sdrplay_api_AGC_CTRL_EN  = 4
+} sdrplay_api_AgcControlT;
+
+typedef enum
+{
+    sdrplay_api_ADSB_DECIMATION                  = 0,
+    sdrplay_api_ADSB_NO_DECIMATION_LOWPASS       = 1,
+    sdrplay_api_ADSB_NO_DECIMATION_BANDPASS_2MHZ = 2,
+    sdrplay_api_ADSB_NO_DECIMATION_BANDPASS_3MHZ = 3
+} sdrplay_api_AdsbModeT;
+
+// Control parameter structs
+typedef struct 
+{
+    unsigned char DCenable;          // default: 1
+    unsigned char IQenable;          // default: 1
+} sdrplay_api_DcOffsetT;
+
+typedef struct 
+{
+    unsigned char enable;            // default: 0
+    unsigned char decimationFactor;  // default: 1
+    unsigned char wideBandSignal;    // default: 0
+} sdrplay_api_DecimationT;
+
+typedef struct 
+{
+    sdrplay_api_AgcControlT enable;    // default: sdrplay_api_AGC_50HZ
+    int setPoint_dBfs;                 // default: -60
+    unsigned short attack_ms;          // default: 0
+    unsigned short decay_ms;           // default: 0
+    unsigned short decay_delay_ms;     // default: 0
+    unsigned short decay_threshold_dB; // default: 0
+    int syncUpdate;                    // default: 0
+} sdrplay_api_AgcT;
+
+typedef struct 
+{
+    sdrplay_api_DcOffsetT dcOffset;
+    sdrplay_api_DecimationT decimation;
+    sdrplay_api_AgcT agc;
+    sdrplay_api_AdsbModeT adsbMode;  //default: sdrplay_api_ADSB_DECIMATION
+} sdrplay_api_ControlParamsT;
+
+#endif //SDRPLAY_API_CONTROL_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_dev.h

@@ -0,0 +1,51 @@
+#ifndef SDRPLAY_API_DEV_H
+#define SDRPLAY_API_DEV_H
+
+#include "sdrplay_api_rsp1a.h"
+#include "sdrplay_api_rsp2.h"
+#include "sdrplay_api_rspDuo.h"
+#include "sdrplay_api_rspDx.h"
+
+// Dev parameter enums
+typedef enum
+{
+    sdrplay_api_ISOCH = 0,
+    sdrplay_api_BULK  = 1
+} sdrplay_api_TransferModeT;
+
+// Dev parameter structs
+typedef struct 
+{
+    double fsHz;                        // default: 2000000.0
+    unsigned char syncUpdate;           // default: 0
+    unsigned char reCal;                // default: 0
+} sdrplay_api_FsFreqT;
+
+typedef struct 
+{
+    unsigned int sampleNum;             // default: 0
+    unsigned int period;                // default: 0
+} sdrplay_api_SyncUpdateT;
+
+typedef struct 
+{
+    unsigned char resetGainUpdate;      // default: 0
+    unsigned char resetRfUpdate;        // default: 0
+    unsigned char resetFsUpdate;        // default: 0
+} sdrplay_api_ResetFlagsT;   
+
+typedef struct 
+{
+    double ppm;                         // default: 0.0
+    sdrplay_api_FsFreqT fsFreq;
+    sdrplay_api_SyncUpdateT syncUpdate; 
+    sdrplay_api_ResetFlagsT resetFlags; 
+    sdrplay_api_TransferModeT mode;     // default: sdrplay_api_ISOCH
+    unsigned int samplesPerPkt;         // default: 0 (output param)
+    sdrplay_api_Rsp1aParamsT rsp1aParams;
+    sdrplay_api_Rsp2ParamsT rsp2Params;
+    sdrplay_api_RspDuoParamsT rspDuoParams;
+    sdrplay_api_RspDxParamsT rspDxParams;
+} sdrplay_api_DevParamsT;
+
+#endif //SDRPLAY_API_DEV_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_rsp1a.h

@@ -0,0 +1,22 @@
+#ifndef SDRPLAY_API_RSP1A_H
+#define SDRPLAY_API_RSP1A_H
+
+#define RSPIA_NUM_LNA_STATES         10
+#define RSPIA_NUM_LNA_STATES_AM      7
+#define RSPIA_NUM_LNA_STATES_LBAND   9
+
+// RSP1A parameter enums
+
+// RSP1A parameter structs
+typedef struct 
+{
+    unsigned char rfNotchEnable;                              // default: 0
+    unsigned char rfDabNotchEnable;                           // default: 0
+} sdrplay_api_Rsp1aParamsT;
+
+typedef struct 
+{
+    unsigned char biasTEnable;                   // default: 0
+} sdrplay_api_Rsp1aTunerParamsT;
+
+#endif //SDRPLAY_API_RSP1A_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_rsp2.h

@@ -0,0 +1,35 @@
+#ifndef SDRPLAY_API_RSP2_H
+#define SDRPLAY_API_RSP2_H
+
+#define RSPII_NUM_LNA_STATES         9
+#define RSPII_NUM_LNA_STATES_AMPORT  5
+#define RSPII_NUM_LNA_STATES_420MHZ  6
+
+// RSP2 parameter enums
+typedef enum
+{
+    sdrplay_api_Rsp2_ANTENNA_A = 5,
+    sdrplay_api_Rsp2_ANTENNA_B = 6,
+} sdrplay_api_Rsp2_AntennaSelectT;
+
+typedef enum
+{
+    sdrplay_api_Rsp2_AMPORT_1 = 1,
+    sdrplay_api_Rsp2_AMPORT_2 = 0,
+} sdrplay_api_Rsp2_AmPortSelectT;
+
+// RSP2 parameter structs
+typedef struct 
+{
+    unsigned char extRefOutputEn;                // default: 0
+} sdrplay_api_Rsp2ParamsT;
+
+typedef struct 
+{
+    unsigned char biasTEnable;                   // default: 0
+    sdrplay_api_Rsp2_AmPortSelectT amPortSel;    // default: sdrplay_api_Rsp2_AMPORT_2
+    sdrplay_api_Rsp2_AntennaSelectT antennaSel;  // default: sdrplay_api_Rsp2_ANTENNA_A
+    unsigned char rfNotchEnable;                 // default: 0
+} sdrplay_api_Rsp2TunerParamsT;
+
+#endif //SDRPLAY_API_RSP2_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_rspDuo.h

@@ -0,0 +1,40 @@
+#ifndef SDRPLAY_API_RSPduo_H
+#define SDRPLAY_API_RSPduo_H
+
+#define RSPDUO_NUM_LNA_STATES         10
+#define RSPDUO_NUM_LNA_STATES_AMPORT  5
+#define RSPDUO_NUM_LNA_STATES_AM      7
+#define RSPDUO_NUM_LNA_STATES_LBAND   9
+
+// RSPduo parameter enums
+typedef enum
+{
+    sdrplay_api_RspDuoMode_Unknown      = 0,
+    sdrplay_api_RspDuoMode_Single_Tuner = 1,
+    sdrplay_api_RspDuoMode_Dual_Tuner   = 2,
+    sdrplay_api_RspDuoMode_Master       = 4,
+    sdrplay_api_RspDuoMode_Slave        = 8,
+} sdrplay_api_RspDuoModeT;
+
+typedef enum
+{
+    sdrplay_api_RspDuo_AMPORT_1 = 1,
+    sdrplay_api_RspDuo_AMPORT_2 = 0,
+} sdrplay_api_RspDuo_AmPortSelectT;
+
+// RSPduo parameter structs
+typedef struct 
+{
+    int extRefOutputEn;                             // default: 0
+} sdrplay_api_RspDuoParamsT;
+
+typedef struct 
+{
+    unsigned char biasTEnable;                      // default: 0
+    sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel; // default: sdrplay_api_RspDuo_AMPORT_2
+    unsigned char tuner1AmNotchEnable;              // default: 0
+    unsigned char rfNotchEnable;                    // default: 0
+    unsigned char rfDabNotchEnable;                 // default: 0
+} sdrplay_api_RspDuoTunerParamsT;
+
+#endif //SDRPLAY_API_RSPduo_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_rspDx.h

@@ -0,0 +1,45 @@
+#ifndef SDRPLAY_API_RSPDX_H
+#define SDRPLAY_API_RSPDX_H
+
+#include "sdrplay_api_tuner.h"
+
+#define RSPDX_NUM_LNA_STATES               28   // Number of LNA states in all bands (except where defined differently below)
+#define RSPDX_NUM_LNA_STATES_AMPORT2_0_12  19   // Number of LNA states when using AM Port 2 between 0 and 12MHz
+#define RSPDX_NUM_LNA_STATES_AMPORT2_12_60 20   // Number of LNA states when using AM Port 2 between 12 and 60MHz
+#define RSPDX_NUM_LNA_STATES_VHF_BAND3     27   // Number of LNA states in VHF and Band3
+#define RSPDX_NUM_LNA_STATES_420MHZ        21   // Number of LNA states in 420MHz band
+#define RSPDX_NUM_LNA_STATES_LBAND         19   // Number of LNA states in L-band
+#define RSPDX_NUM_LNA_STATES_DX            26   // Number of LNA states in DX path
+
+// RSPdx parameter enums
+typedef enum
+{
+    sdrplay_api_RspDx_ANTENNA_A = 0,
+    sdrplay_api_RspDx_ANTENNA_B = 1,
+    sdrplay_api_RspDx_ANTENNA_C = 2,
+} sdrplay_api_RspDx_AntennaSelectT;
+
+typedef enum
+{
+    sdrplay_api_RspDx_HDRMODE_BW_0_200  = 0,
+    sdrplay_api_RspDx_HDRMODE_BW_0_500  = 1,
+    sdrplay_api_RspDx_HDRMODE_BW_1_200  = 2,
+    sdrplay_api_RspDx_HDRMODE_BW_1_700  = 3,
+} sdrplay_api_RspDx_HdrModeBwT;
+
+// RSPdx parameter structs
+typedef struct 
+{
+    unsigned char hdrEnable;                            // default: 0
+    unsigned char biasTEnable;                          // default: 0
+    sdrplay_api_RspDx_AntennaSelectT antennaSel;        // default: sdrplay_api_RspDx_ANTENNA_A
+    unsigned char rfNotchEnable;                        // default: 0
+    unsigned char rfDabNotchEnable;                     // default: 0
+} sdrplay_api_RspDxParamsT;
+
+typedef struct 
+{
+    sdrplay_api_RspDx_HdrModeBwT hdrBw;                 // default: sdrplay_api_RspDx_HDRMODE_BW_1_700
+} sdrplay_api_RspDxTunerParamsT;
+
+#endif //SDRPLAY_API_RSPDX_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_rx_channel.h

@@ -0,0 +1,21 @@
+#ifndef SDRPLAY_API_RX_CHANNEL_H
+#define SDRPLAY_API_RX_CHANNEL_H
+
+#include "sdrplay_api_tuner.h"
+#include "sdrplay_api_control.h"
+#include "sdrplay_api_rsp1a.h"
+#include "sdrplay_api_rsp2.h"
+#include "sdrplay_api_rspDuo.h"
+#include "sdrplay_api_rspDx.h"
+
+typedef struct 
+{
+    sdrplay_api_TunerParamsT        tunerParams;    
+    sdrplay_api_ControlParamsT      ctrlParams;     
+    sdrplay_api_Rsp1aTunerParamsT   rsp1aTunerParams; 
+    sdrplay_api_Rsp2TunerParamsT    rsp2TunerParams; 
+    sdrplay_api_RspDuoTunerParamsT  rspDuoTunerParams;    
+    sdrplay_api_RspDxTunerParamsT   rspDxTunerParams;    
+} sdrplay_api_RxChannelParamsT;
+
+#endif //SDRPLAY_API_RX_CHANNEL_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_tuner.h

@@ -0,0 +1,93 @@
+#ifndef SDRPLAY_API_TUNER_H
+#define SDRPLAY_API_TUNER_H
+
+#define MAX_BB_GR                         (59)
+
+// Tuner parameter enums
+typedef enum
+{
+    sdrplay_api_BW_Undefined = 0,
+    sdrplay_api_BW_0_200     = 200,
+    sdrplay_api_BW_0_300     = 300,
+    sdrplay_api_BW_0_600     = 600,
+    sdrplay_api_BW_1_536     = 1536,
+    sdrplay_api_BW_5_000     = 5000,
+    sdrplay_api_BW_6_000     = 6000,
+    sdrplay_api_BW_7_000     = 7000,
+    sdrplay_api_BW_8_000     = 8000
+} sdrplay_api_Bw_MHzT;
+
+typedef enum
+{
+    sdrplay_api_IF_Undefined = -1,
+    sdrplay_api_IF_Zero      = 0,
+    sdrplay_api_IF_0_450     = 450,
+    sdrplay_api_IF_1_620     = 1620,
+    sdrplay_api_IF_2_048     = 2048
+} sdrplay_api_If_kHzT;
+
+typedef enum
+{
+    sdrplay_api_LO_Undefined = 0,
+    sdrplay_api_LO_Auto      = 1,
+    sdrplay_api_LO_120MHz    = 2,
+    sdrplay_api_LO_144MHz    = 3,
+    sdrplay_api_LO_168MHz    = 4
+} sdrplay_api_LoModeT;
+
+typedef enum
+{
+    sdrplay_api_EXTENDED_MIN_GR = 0,
+    sdrplay_api_NORMAL_MIN_GR   = 20
+} sdrplay_api_MinGainReductionT;
+
+typedef enum
+{
+    sdrplay_api_Tuner_Neither  = 0,
+    sdrplay_api_Tuner_A        = 1,
+    sdrplay_api_Tuner_B        = 2,
+    sdrplay_api_Tuner_Both     = 3,
+} sdrplay_api_TunerSelectT;
+
+// Tuner parameter structs
+typedef struct
+{
+    float curr;
+    float max;
+    float min;
+} sdrplay_api_GainValuesT;
+
+typedef struct 
+{
+    int gRdB;                            // default: 50
+    unsigned char LNAstate;              // default: 0
+    unsigned char syncUpdate;            // default: 0
+    sdrplay_api_MinGainReductionT minGr; // default: sdrplay_api_NORMAL_MIN_GR
+    sdrplay_api_GainValuesT gainVals;    // output parameter
+} sdrplay_api_GainT;
+
+typedef struct 
+{
+    double rfHz;                         // default: 200000000.0
+    unsigned char syncUpdate;            // default: 0
+} sdrplay_api_RfFreqT;
+
+typedef struct 
+{
+    unsigned char dcCal;                 // default: 3 (Periodic mode)
+    unsigned char speedUp;               // default: 0 (No speedup)
+    int trackTime;                       // default: 1    (=> time in uSec = (72 * 3 * trackTime) / 24e6       = 9uSec)
+    int refreshRateTime;                 // default: 2048 (=> time in uSec = (72 * 3 * refreshRateTime) / 24e6 = 18432uSec)
+} sdrplay_api_DcOffsetTunerT;
+
+typedef struct 
+{
+    sdrplay_api_Bw_MHzT bwType;          // default: sdrplay_api_BW_0_200
+    sdrplay_api_If_kHzT ifType;          // default: sdrplay_api_IF_Zero
+    sdrplay_api_LoModeT loMode;          // default: sdrplay_api_LO_Auto
+    sdrplay_api_GainT gain;
+    sdrplay_api_RfFreqT rfFreq;
+    sdrplay_api_DcOffsetTunerT dcOffsetTuner;
+} sdrplay_api_TunerParamsT;
+
+#endif //SDRPLAY_API_TUNER_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api.h

@@ -0,0 +1,230 @@
+#ifndef SDRPLAY_API_H
+#define SDRPLAY_API_H
+
+#include "sdrplay_api_dev.h"
+#include "sdrplay_api_rx_channel.h"
+#include "sdrplay_api_callback.h"
+
+//#if defined(_M_X64) || defined(_M_IX86) || defined(_M_ARM64)
+//#include "windows.h"
+//#elif defined (__GNUC__)
+typedef void *HANDLE;
+//#endif
+
+//#ifndef _SDRPLAY_DLL_QUALIFIER
+//#if !defined(STATIC_LIB) && (defined(_M_X64) || defined(_M_IX86) || defined(_M_ARM64))
+//#define _SDRPLAY_DLL_QUALIFIER __declspec(dllimport)
+//#elif defined(STATIC_LIB) || defined(__GNUC__)
+//#define _SDRPLAY_DLL_QUALIFIER
+//#endif
+//#endif  // _SDRPLAY_DLL_QUALIFIER
+
+// Application code should check that it is compiled against the same API version
+// sdrplay_api_ApiVersion() returns the API version 
+#define SDRPLAY_API_VERSION                   (float)(3.11)
+
+// API Constants
+#define SDRPLAY_MAX_DEVICES                   (16)
+#define SDRPLAY_MAX_TUNERS_PER_DEVICE         (2)
+
+#define SDRPLAY_MAX_SER_NO_LEN                (64)
+#define SDRPLAY_MAX_ROOT_NM_LEN               (32)
+
+#define SDRPLAY_RSP1_ID                       (1)
+#define SDRPLAY_RSP1A_ID                      (255)
+#define SDRPLAY_RSP2_ID                       (2)
+#define SDRPLAY_RSPduo_ID                     (3)
+#define SDRPLAY_RSPdx_ID                      (4)
+
+// Enum types
+typedef enum
+{
+    sdrplay_api_Success               = 0,
+    sdrplay_api_Fail                  = 1,
+    sdrplay_api_InvalidParam          = 2,
+    sdrplay_api_OutOfRange            = 3,
+    sdrplay_api_GainUpdateError       = 4,
+    sdrplay_api_RfUpdateError         = 5,
+    sdrplay_api_FsUpdateError         = 6,
+    sdrplay_api_HwError               = 7,
+    sdrplay_api_AliasingError         = 8,
+    sdrplay_api_AlreadyInitialised    = 9,
+    sdrplay_api_NotInitialised        = 10,
+    sdrplay_api_NotEnabled            = 11,
+    sdrplay_api_HwVerError            = 12,
+    sdrplay_api_OutOfMemError         = 13,
+    sdrplay_api_ServiceNotResponding  = 14,
+    sdrplay_api_StartPending          = 15,
+    sdrplay_api_StopPending           = 16,
+    sdrplay_api_InvalidMode           = 17,
+    sdrplay_api_FailedVerification1   = 18,
+    sdrplay_api_FailedVerification2   = 19,
+    sdrplay_api_FailedVerification3   = 20,
+    sdrplay_api_FailedVerification4   = 21,
+    sdrplay_api_FailedVerification5   = 22,
+    sdrplay_api_FailedVerification6   = 23,
+    sdrplay_api_InvalidServiceVersion = 24
+} sdrplay_api_ErrT;
+
+typedef enum
+{
+    sdrplay_api_Update_None                        = 0x00000000,
+
+    // Reasons for master only mode 
+    sdrplay_api_Update_Dev_Fs                      = 0x00000001,
+    sdrplay_api_Update_Dev_Ppm                     = 0x00000002,
+    sdrplay_api_Update_Dev_SyncUpdate              = 0x00000004,
+    sdrplay_api_Update_Dev_ResetFlags              = 0x00000008,
+
+    sdrplay_api_Update_Rsp1a_BiasTControl          = 0x00000010,
+    sdrplay_api_Update_Rsp1a_RfNotchControl        = 0x00000020,
+    sdrplay_api_Update_Rsp1a_RfDabNotchControl     = 0x00000040,
+
+    sdrplay_api_Update_Rsp2_BiasTControl           = 0x00000080,
+    sdrplay_api_Update_Rsp2_AmPortSelect           = 0x00000100,
+    sdrplay_api_Update_Rsp2_AntennaControl         = 0x00000200,
+    sdrplay_api_Update_Rsp2_RfNotchControl         = 0x00000400,
+    sdrplay_api_Update_Rsp2_ExtRefControl          = 0x00000800,
+
+    sdrplay_api_Update_RspDuo_ExtRefControl        = 0x00001000,
+
+    sdrplay_api_Update_Master_Spare_1              = 0x00002000,
+    sdrplay_api_Update_Master_Spare_2              = 0x00004000,
+
+    // Reasons for master and slave mode
+    // Note: sdrplay_api_Update_Tuner_Gr MUST be the first value defined in this section!
+    sdrplay_api_Update_Tuner_Gr                    = 0x00008000,
+    sdrplay_api_Update_Tuner_GrLimits              = 0x00010000,
+    sdrplay_api_Update_Tuner_Frf                   = 0x00020000,
+    sdrplay_api_Update_Tuner_BwType                = 0x00040000,
+    sdrplay_api_Update_Tuner_IfType                = 0x00080000,
+    sdrplay_api_Update_Tuner_DcOffset              = 0x00100000,
+    sdrplay_api_Update_Tuner_LoMode                = 0x00200000,
+
+    sdrplay_api_Update_Ctrl_DCoffsetIQimbalance    = 0x00400000,
+    sdrplay_api_Update_Ctrl_Decimation             = 0x00800000,
+    sdrplay_api_Update_Ctrl_Agc                    = 0x01000000,
+    sdrplay_api_Update_Ctrl_AdsbMode               = 0x02000000,
+    sdrplay_api_Update_Ctrl_OverloadMsgAck         = 0x04000000,
+
+    sdrplay_api_Update_RspDuo_BiasTControl         = 0x08000000,
+    sdrplay_api_Update_RspDuo_AmPortSelect         = 0x10000000,
+    sdrplay_api_Update_RspDuo_Tuner1AmNotchControl = 0x20000000,
+    sdrplay_api_Update_RspDuo_RfNotchControl       = 0x40000000,
+    sdrplay_api_Update_RspDuo_RfDabNotchControl    = 0x80000000,
+} sdrplay_api_ReasonForUpdateT;
+
+typedef enum
+{
+    sdrplay_api_Update_Ext1_None                   = 0x00000000,
+
+    // Reasons for master only mode 
+    sdrplay_api_Update_RspDx_HdrEnable             = 0x00000001,
+    sdrplay_api_Update_RspDx_BiasTControl          = 0x00000002,
+    sdrplay_api_Update_RspDx_AntennaControl        = 0x00000004,
+    sdrplay_api_Update_RspDx_RfNotchControl        = 0x00000008,
+    sdrplay_api_Update_RspDx_RfDabNotchControl     = 0x00000010,
+    sdrplay_api_Update_RspDx_HdrBw                 = 0x00000020,
+
+    // Reasons for master and slave mode
+} sdrplay_api_ReasonForUpdateExtension1T;
+
+typedef enum
+{
+    sdrplay_api_DbgLvl_Disable       = 0,
+    sdrplay_api_DbgLvl_Verbose       = 1,
+    sdrplay_api_DbgLvl_Warning       = 2,
+    sdrplay_api_DbgLvl_Error         = 3,
+    sdrplay_api_DbgLvl_Message       = 4,
+} sdrplay_api_DbgLvl_t;
+
+// Device structure 
+typedef struct 
+{
+    char SerNo[SDRPLAY_MAX_SER_NO_LEN];
+    unsigned char hwVer;
+    sdrplay_api_TunerSelectT tuner;
+    sdrplay_api_RspDuoModeT rspDuoMode;
+    unsigned char valid;
+    double rspDuoSampleFreq;
+    HANDLE dev;
+} sdrplay_api_DeviceT;
+
+// Device parameter structure
+typedef struct 
+{
+    sdrplay_api_DevParamsT       *devParams;
+    sdrplay_api_RxChannelParamsT *rxChannelA;
+    sdrplay_api_RxChannelParamsT *rxChannelB;
+} sdrplay_api_DeviceParamsT;
+
+// Extended error message structure
+typedef struct 
+{
+    char file[256];
+    char function[256];
+    int  line;
+    char message[1024];
+} sdrplay_api_ErrorInfoT;
+
+// Comman API function types
+typedef sdrplay_api_ErrT        (*sdrplay_api_Open_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_Close_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_ApiVersion_t)(float *apiVer);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_LockDeviceApi_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_UnlockDeviceApi_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_GetDevices_t)(sdrplay_api_DeviceT *devices, unsigned int *numDevs, unsigned int maxDevs);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_SelectDevice_t)(sdrplay_api_DeviceT *device);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_ReleaseDevice_t)(sdrplay_api_DeviceT *device);    
+typedef const char*             (*sdrplay_api_GetErrorString_t)(sdrplay_api_ErrT err);
+typedef sdrplay_api_ErrorInfoT* (*sdrplay_api_GetLastError_t)(sdrplay_api_DeviceT *device);
+typedef sdrplay_api_ErrT        (*sdrplay_api_DisableHeartbeat_t)(void);
+
+// Device API function types
+typedef sdrplay_api_ErrT        (*sdrplay_api_DebugEnable_t)(HANDLE dev, sdrplay_api_DbgLvl_t dbgLvl); 
+typedef sdrplay_api_ErrT        (*sdrplay_api_GetDeviceParams_t)(HANDLE dev, sdrplay_api_DeviceParamsT **deviceParams); 
+typedef sdrplay_api_ErrT        (*sdrplay_api_Init_t)(HANDLE dev, sdrplay_api_CallbackFnsT *callbackFns, void *cbContext); 
+typedef sdrplay_api_ErrT        (*sdrplay_api_Uninit_t)(HANDLE dev);
+typedef sdrplay_api_ErrT        (*sdrplay_api_Update_t)(HANDLE dev, sdrplay_api_TunerSelectT tuner, sdrplay_api_ReasonForUpdateT reasonForUpdate, sdrplay_api_ReasonForUpdateExtension1T reasonForUpdateExt1);
+typedef sdrplay_api_ErrT        (*sdrplay_api_SwapRspDuoActiveTuner_t)(HANDLE dev, sdrplay_api_TunerSelectT *tuner, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+typedef sdrplay_api_ErrT        (*sdrplay_api_SwapRspDuoDualTunerModeSampleRate_t)(double *currentSampleRate, double newSampleRate);
+typedef sdrplay_api_ErrT        (*sdrplay_api_SwapRspDuoMode_t)(sdrplay_api_DeviceT *currDevice, sdrplay_api_DeviceParamsT **deviceParams,
+                                                                sdrplay_api_RspDuoModeT rspDuoMode, double sampleRate, sdrplay_api_TunerSelectT tuner,
+                                                                sdrplay_api_Bw_MHzT bwType, sdrplay_api_If_kHzT ifType, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+
+// API function definitions
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    // Comman API function definitions
+     sdrplay_api_ErrT        sdrplay_api_Open(void);
+     sdrplay_api_ErrT        sdrplay_api_Close(void);
+     sdrplay_api_ErrT        sdrplay_api_ApiVersion(float *apiVer);
+     sdrplay_api_ErrT        sdrplay_api_LockDeviceApi(void);
+     sdrplay_api_ErrT        sdrplay_api_UnlockDeviceApi(void);
+     sdrplay_api_ErrT        sdrplay_api_GetDevices(sdrplay_api_DeviceT *devices, unsigned int *numDevs, unsigned int maxDevs);
+     sdrplay_api_ErrT        sdrplay_api_SelectDevice(sdrplay_api_DeviceT *device);
+     sdrplay_api_ErrT        sdrplay_api_ReleaseDevice(sdrplay_api_DeviceT *device);
+     const char*             sdrplay_api_GetErrorString(sdrplay_api_ErrT err);
+     sdrplay_api_ErrorInfoT* sdrplay_api_GetLastError(sdrplay_api_DeviceT *device);
+     sdrplay_api_ErrT        sdrplay_api_DisableHeartbeat(void); // Must be called before sdrplay_api_SelectDevice()
+
+    // Device API function definitions
+     sdrplay_api_ErrT        sdrplay_api_DebugEnable(HANDLE dev, sdrplay_api_DbgLvl_t enable);
+     sdrplay_api_ErrT        sdrplay_api_GetDeviceParams(HANDLE dev, sdrplay_api_DeviceParamsT **deviceParams);
+     sdrplay_api_ErrT        sdrplay_api_Init(HANDLE dev, sdrplay_api_CallbackFnsT *callbackFns, void *cbContext);
+     sdrplay_api_ErrT        sdrplay_api_Uninit(HANDLE dev);
+     sdrplay_api_ErrT        sdrplay_api_Update(HANDLE dev, sdrplay_api_TunerSelectT tuner, sdrplay_api_ReasonForUpdateT reasonForUpdate, sdrplay_api_ReasonForUpdateExtension1T reasonForUpdateExt1);
+     sdrplay_api_ErrT        sdrplay_api_SwapRspDuoActiveTuner(HANDLE dev, sdrplay_api_TunerSelectT *currentTuner, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+     sdrplay_api_ErrT        sdrplay_api_SwapRspDuoDualTunerModeSampleRate(HANDLE dev, double *currentSampleRate, double newSampleRate);
+     sdrplay_api_ErrT        sdrplay_api_SwapRspDuoMode(sdrplay_api_DeviceT *currDevice, sdrplay_api_DeviceParamsT **deviceParams,
+                                                                              sdrplay_api_RspDuoModeT rspDuoMode, double sampleRate, sdrplay_api_TunerSelectT tuner,
+                                                                              sdrplay_api_Bw_MHzT bwType, sdrplay_api_If_kHzT ifType, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //SDRPLAY_API_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_callback.h

@@ -0,0 +1,79 @@
+#ifndef SDRPLAY_API_CALLBACK_H
+#define SDRPLAY_API_CALLBACK_H
+
+// Event callback enums
+typedef enum
+{
+    sdrplay_api_Overload_Detected     = 0,
+    sdrplay_api_Overload_Corrected    = 1,
+} sdrplay_api_PowerOverloadCbEventIdT;
+
+typedef enum
+{
+    sdrplay_api_MasterInitialised      = 0,
+    sdrplay_api_SlaveAttached          = 1,
+    sdrplay_api_SlaveDetached          = 2,
+    sdrplay_api_SlaveInitialised       = 3,
+    sdrplay_api_SlaveUninitialised     = 4,
+    sdrplay_api_MasterDllDisappeared   = 5,
+    sdrplay_api_SlaveDllDisappeared    = 6,
+} sdrplay_api_RspDuoModeCbEventIdT;
+
+typedef enum
+{
+    sdrplay_api_GainChange            = 0,
+    sdrplay_api_PowerOverloadChange   = 1,
+    sdrplay_api_DeviceRemoved         = 2,
+    sdrplay_api_RspDuoModeChange      = 3,
+    sdrplay_api_DeviceFailure         = 4,
+} sdrplay_api_EventT;
+
+// Event callback parameter structs
+typedef struct 
+{
+    unsigned int gRdB;
+    unsigned int lnaGRdB;
+    double currGain;
+} sdrplay_api_GainCbParamT;
+
+typedef struct 
+{
+    sdrplay_api_PowerOverloadCbEventIdT powerOverloadChangeType;
+} sdrplay_api_PowerOverloadCbParamT;
+
+typedef struct 
+{
+    sdrplay_api_RspDuoModeCbEventIdT modeChangeType;
+} sdrplay_api_RspDuoModeCbParamT;
+
+// Event parameters overlay
+typedef union
+{
+    sdrplay_api_GainCbParamT          gainParams;
+    sdrplay_api_PowerOverloadCbParamT powerOverloadParams;
+    sdrplay_api_RspDuoModeCbParamT    rspDuoModeParams;
+} sdrplay_api_EventParamsT;
+
+// Stream callback parameter structs
+typedef struct 
+{
+    unsigned int firstSampleNum;
+    int grChanged;
+    int rfChanged;
+    int fsChanged;
+    unsigned int numSamples;
+} sdrplay_api_StreamCbParamsT;
+
+// Callback function prototypes
+typedef void (*sdrplay_api_StreamCallback_t)(short *xi, short *xq, sdrplay_api_StreamCbParamsT *params, unsigned int numSamples, unsigned int reset, void *cbContext); 
+typedef void (*sdrplay_api_EventCallback_t)(sdrplay_api_EventT eventId, sdrplay_api_TunerSelectT tuner, sdrplay_api_EventParamsT *params, void *cbContext); 
+
+// Callback function struct
+typedef struct 
+{
+    sdrplay_api_StreamCallback_t StreamACbFn;
+    sdrplay_api_StreamCallback_t StreamBCbFn;
+    sdrplay_api_EventCallback_t  EventCbFn;
+} sdrplay_api_CallbackFnsT;
+
+#endif //SDRPLAY_API_CALLBACK_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_control.h

@@ -0,0 +1,55 @@
+#ifndef SDRPLAY_API_CONTROL_H
+#define SDRPLAY_API_CONTROL_H
+
+// Control parameter enums
+typedef enum
+{
+    sdrplay_api_AGC_DISABLE  = 0,
+    sdrplay_api_AGC_100HZ    = 1,
+    sdrplay_api_AGC_50HZ     = 2,
+    sdrplay_api_AGC_5HZ      = 3,
+    sdrplay_api_AGC_CTRL_EN  = 4
+} sdrplay_api_AgcControlT;
+
+typedef enum
+{
+    sdrplay_api_ADSB_DECIMATION                  = 0,
+    sdrplay_api_ADSB_NO_DECIMATION_LOWPASS       = 1,
+    sdrplay_api_ADSB_NO_DECIMATION_BANDPASS_2MHZ = 2,
+    sdrplay_api_ADSB_NO_DECIMATION_BANDPASS_3MHZ = 3
+} sdrplay_api_AdsbModeT;
+
+// Control parameter structs
+typedef struct 
+{
+    unsigned char DCenable;          // default: 1
+    unsigned char IQenable;          // default: 1
+} sdrplay_api_DcOffsetT;
+
+typedef struct 
+{
+    unsigned char enable;            // default: 0
+    unsigned char decimationFactor;  // default: 1
+    unsigned char wideBandSignal;    // default: 0
+} sdrplay_api_DecimationT;
+
+typedef struct 
+{
+    sdrplay_api_AgcControlT enable;    // default: sdrplay_api_AGC_50HZ
+    int setPoint_dBfs;                 // default: -60
+    unsigned short attack_ms;          // default: 0
+    unsigned short decay_ms;           // default: 0
+    unsigned short decay_delay_ms;     // default: 0
+    unsigned short decay_threshold_dB; // default: 0
+    int syncUpdate;                    // default: 0
+} sdrplay_api_AgcT;
+
+typedef struct 
+{
+    sdrplay_api_DcOffsetT dcOffset;
+    sdrplay_api_DecimationT decimation;
+    sdrplay_api_AgcT agc;
+    sdrplay_api_AdsbModeT adsbMode;  //default: sdrplay_api_ADSB_DECIMATION
+} sdrplay_api_ControlParamsT;
+
+#endif //SDRPLAY_API_CONTROL_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_dev.h

@@ -0,0 +1,51 @@
+#ifndef SDRPLAY_API_DEV_H
+#define SDRPLAY_API_DEV_H
+
+#include "sdrplay_api_rsp1a.h"
+#include "sdrplay_api_rsp2.h"
+#include "sdrplay_api_rspDuo.h"
+#include "sdrplay_api_rspDx.h"
+
+// Dev parameter enums
+typedef enum
+{
+    sdrplay_api_ISOCH = 0,
+    sdrplay_api_BULK  = 1
+} sdrplay_api_TransferModeT;
+
+// Dev parameter structs
+typedef struct 
+{
+    double fsHz;                        // default: 2000000.0
+    unsigned char syncUpdate;           // default: 0
+    unsigned char reCal;                // default: 0
+} sdrplay_api_FsFreqT;
+
+typedef struct 
+{
+    unsigned int sampleNum;             // default: 0
+    unsigned int period;                // default: 0
+} sdrplay_api_SyncUpdateT;
+
+typedef struct 
+{
+    unsigned char resetGainUpdate;      // default: 0
+    unsigned char resetRfUpdate;        // default: 0
+    unsigned char resetFsUpdate;        // default: 0
+} sdrplay_api_ResetFlagsT;   
+
+typedef struct 
+{
+    double ppm;                         // default: 0.0
+    sdrplay_api_FsFreqT fsFreq;
+    sdrplay_api_SyncUpdateT syncUpdate; 
+    sdrplay_api_ResetFlagsT resetFlags; 
+    sdrplay_api_TransferModeT mode;     // default: sdrplay_api_ISOCH
+    unsigned int samplesPerPkt;         // default: 0 (output param)
+    sdrplay_api_Rsp1aParamsT rsp1aParams;
+    sdrplay_api_Rsp2ParamsT rsp2Params;
+    sdrplay_api_RspDuoParamsT rspDuoParams;
+    sdrplay_api_RspDxParamsT rspDxParams;
+} sdrplay_api_DevParamsT;
+
+#endif //SDRPLAY_API_DEV_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_rsp1a.h

@@ -0,0 +1,22 @@
+#ifndef SDRPLAY_API_RSP1A_H
+#define SDRPLAY_API_RSP1A_H
+
+#define RSPIA_NUM_LNA_STATES         10
+#define RSPIA_NUM_LNA_STATES_AM      7
+#define RSPIA_NUM_LNA_STATES_LBAND   9
+
+// RSP1A parameter enums
+
+// RSP1A parameter structs
+typedef struct 
+{
+    unsigned char rfNotchEnable;                              // default: 0
+    unsigned char rfDabNotchEnable;                           // default: 0
+} sdrplay_api_Rsp1aParamsT;
+
+typedef struct 
+{
+    unsigned char biasTEnable;                   // default: 0
+} sdrplay_api_Rsp1aTunerParamsT;
+
+#endif //SDRPLAY_API_RSP1A_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_rsp2.h

@@ -0,0 +1,35 @@
+#ifndef SDRPLAY_API_RSP2_H
+#define SDRPLAY_API_RSP2_H
+
+#define RSPII_NUM_LNA_STATES         9
+#define RSPII_NUM_LNA_STATES_AMPORT  5
+#define RSPII_NUM_LNA_STATES_420MHZ  6
+
+// RSP2 parameter enums
+typedef enum
+{
+    sdrplay_api_Rsp2_ANTENNA_A = 5,
+    sdrplay_api_Rsp2_ANTENNA_B = 6,
+} sdrplay_api_Rsp2_AntennaSelectT;
+
+typedef enum
+{
+    sdrplay_api_Rsp2_AMPORT_1 = 1,
+    sdrplay_api_Rsp2_AMPORT_2 = 0,
+} sdrplay_api_Rsp2_AmPortSelectT;
+
+// RSP2 parameter structs
+typedef struct 
+{
+    unsigned char extRefOutputEn;                // default: 0
+} sdrplay_api_Rsp2ParamsT;
+
+typedef struct 
+{
+    unsigned char biasTEnable;                   // default: 0
+    sdrplay_api_Rsp2_AmPortSelectT amPortSel;    // default: sdrplay_api_Rsp2_AMPORT_2
+    sdrplay_api_Rsp2_AntennaSelectT antennaSel;  // default: sdrplay_api_Rsp2_ANTENNA_A
+    unsigned char rfNotchEnable;                 // default: 0
+} sdrplay_api_Rsp2TunerParamsT;
+
+#endif //SDRPLAY_API_RSP2_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_rspDuo.h

@@ -0,0 +1,40 @@
+#ifndef SDRPLAY_API_RSPduo_H
+#define SDRPLAY_API_RSPduo_H
+
+#define RSPDUO_NUM_LNA_STATES         10
+#define RSPDUO_NUM_LNA_STATES_AMPORT  5
+#define RSPDUO_NUM_LNA_STATES_AM      7
+#define RSPDUO_NUM_LNA_STATES_LBAND   9
+
+// RSPduo parameter enums
+typedef enum
+{
+    sdrplay_api_RspDuoMode_Unknown      = 0,
+    sdrplay_api_RspDuoMode_Single_Tuner = 1,
+    sdrplay_api_RspDuoMode_Dual_Tuner   = 2,
+    sdrplay_api_RspDuoMode_Master       = 4,
+    sdrplay_api_RspDuoMode_Slave        = 8,
+} sdrplay_api_RspDuoModeT;
+
+typedef enum
+{
+    sdrplay_api_RspDuo_AMPORT_1 = 1,
+    sdrplay_api_RspDuo_AMPORT_2 = 0,
+} sdrplay_api_RspDuo_AmPortSelectT;
+
+// RSPduo parameter structs
+typedef struct 
+{
+    int extRefOutputEn;                             // default: 0
+} sdrplay_api_RspDuoParamsT;
+
+typedef struct 
+{
+    unsigned char biasTEnable;                      // default: 0
+    sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel; // default: sdrplay_api_RspDuo_AMPORT_2
+    unsigned char tuner1AmNotchEnable;              // default: 0
+    unsigned char rfNotchEnable;                    // default: 0
+    unsigned char rfDabNotchEnable;                 // default: 0
+} sdrplay_api_RspDuoTunerParamsT;
+
+#endif //SDRPLAY_API_RSPduo_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_rspDx.h

@@ -0,0 +1,46 @@
+#ifndef SDRPLAY_API_RSPDX_H
+#define SDRPLAY_API_RSPDX_H
+
+#include "sdrplay_api_tuner.h"
+
+#define RSPDX_NUM_LNA_STATES               28   // Number of LNA states in all bands (except where defined differently below)
+#define RSPDX_NUM_LNA_STATES_AMPORT2_0_12  19   // Number of LNA states when using AM Port 2 between 0 and 12MHz
+#define RSPDX_NUM_LNA_STATES_AMPORT2_12_50 20   // Number of LNA states when using AM Port 2 between 12 and 50MHz
+#define RSPDX_NUM_LNA_STATES_AMPORT2_50_60 25   // Number of LNA states when using AM Port 2 between 50 and 60MHz
+#define RSPDX_NUM_LNA_STATES_VHF_BAND3     27   // Number of LNA states in VHF and Band3
+#define RSPDX_NUM_LNA_STATES_420MHZ        21   // Number of LNA states in 420MHz band
+#define RSPDX_NUM_LNA_STATES_LBAND         19   // Number of LNA states in L-band
+#define RSPDX_NUM_LNA_STATES_DX            22   // Number of LNA states in DX path
+
+// RSPdx parameter enums
+typedef enum
+{
+    sdrplay_api_RspDx_ANTENNA_A = 0,
+    sdrplay_api_RspDx_ANTENNA_B = 1,
+    sdrplay_api_RspDx_ANTENNA_C = 2,
+} sdrplay_api_RspDx_AntennaSelectT;
+
+typedef enum
+{
+    sdrplay_api_RspDx_HDRMODE_BW_0_200  = 0,
+    sdrplay_api_RspDx_HDRMODE_BW_0_500  = 1,
+    sdrplay_api_RspDx_HDRMODE_BW_1_200  = 2,
+    sdrplay_api_RspDx_HDRMODE_BW_1_700  = 3,
+} sdrplay_api_RspDx_HdrModeBwT;
+
+// RSPdx parameter structs
+typedef struct 
+{
+    unsigned char hdrEnable;                            // default: 0
+    unsigned char biasTEnable;                          // default: 0
+    sdrplay_api_RspDx_AntennaSelectT antennaSel;        // default: sdrplay_api_RspDx_ANTENNA_A
+    unsigned char rfNotchEnable;                        // default: 0
+    unsigned char rfDabNotchEnable;                     // default: 0
+} sdrplay_api_RspDxParamsT;
+
+typedef struct 
+{
+    sdrplay_api_RspDx_HdrModeBwT hdrBw;                 // default: sdrplay_api_RspDx_HDRMODE_BW_1_700
+} sdrplay_api_RspDxTunerParamsT;
+
+#endif //SDRPLAY_API_RSPDX_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_rx_channel.h

@@ -0,0 +1,21 @@
+#ifndef SDRPLAY_API_RX_CHANNEL_H
+#define SDRPLAY_API_RX_CHANNEL_H
+
+#include "sdrplay_api_tuner.h"
+#include "sdrplay_api_control.h"
+#include "sdrplay_api_rsp1a.h"
+#include "sdrplay_api_rsp2.h"
+#include "sdrplay_api_rspDuo.h"
+#include "sdrplay_api_rspDx.h"
+
+typedef struct 
+{
+    sdrplay_api_TunerParamsT        tunerParams;    
+    sdrplay_api_ControlParamsT      ctrlParams;     
+    sdrplay_api_Rsp1aTunerParamsT   rsp1aTunerParams; 
+    sdrplay_api_Rsp2TunerParamsT    rsp2TunerParams; 
+    sdrplay_api_RspDuoTunerParamsT  rspDuoTunerParams;    
+    sdrplay_api_RspDxTunerParamsT   rspDxTunerParams;    
+} sdrplay_api_RxChannelParamsT;
+
+#endif //SDRPLAY_API_RX_CHANNEL_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_tuner.h

@@ -0,0 +1,93 @@
+#ifndef SDRPLAY_API_TUNER_H
+#define SDRPLAY_API_TUNER_H
+
+#define MAX_BB_GR                         (59)
+
+// Tuner parameter enums
+typedef enum
+{
+    sdrplay_api_BW_Undefined = 0,
+    sdrplay_api_BW_0_200     = 200,
+    sdrplay_api_BW_0_300     = 300,
+    sdrplay_api_BW_0_600     = 600,
+    sdrplay_api_BW_1_536     = 1536,
+    sdrplay_api_BW_5_000     = 5000,
+    sdrplay_api_BW_6_000     = 6000,
+    sdrplay_api_BW_7_000     = 7000,
+    sdrplay_api_BW_8_000     = 8000
+} sdrplay_api_Bw_MHzT;
+
+typedef enum
+{
+    sdrplay_api_IF_Undefined = -1,
+    sdrplay_api_IF_Zero      = 0,
+    sdrplay_api_IF_0_450     = 450,
+    sdrplay_api_IF_1_620     = 1620,
+    sdrplay_api_IF_2_048     = 2048
+} sdrplay_api_If_kHzT;
+
+typedef enum
+{
+    sdrplay_api_LO_Undefined = 0,
+    sdrplay_api_LO_Auto      = 1,
+    sdrplay_api_LO_120MHz    = 2,
+    sdrplay_api_LO_144MHz    = 3,
+    sdrplay_api_LO_168MHz    = 4
+} sdrplay_api_LoModeT;
+
+typedef enum
+{
+    sdrplay_api_EXTENDED_MIN_GR = 0,
+    sdrplay_api_NORMAL_MIN_GR   = 20
+} sdrplay_api_MinGainReductionT;
+
+typedef enum
+{
+    sdrplay_api_Tuner_Neither  = 0,
+    sdrplay_api_Tuner_A        = 1,
+    sdrplay_api_Tuner_B        = 2,
+    sdrplay_api_Tuner_Both     = 3,
+} sdrplay_api_TunerSelectT;
+
+// Tuner parameter structs
+typedef struct
+{
+    float curr;
+    float max;
+    float min;
+} sdrplay_api_GainValuesT;
+
+typedef struct 
+{
+    int gRdB;                            // default: 50
+    unsigned char LNAstate;              // default: 0
+    unsigned char syncUpdate;            // default: 0
+    sdrplay_api_MinGainReductionT minGr; // default: sdrplay_api_NORMAL_MIN_GR
+    sdrplay_api_GainValuesT gainVals;    // output parameter
+} sdrplay_api_GainT;
+
+typedef struct 
+{
+    double rfHz;                         // default: 200000000.0
+    unsigned char syncUpdate;            // default: 0
+} sdrplay_api_RfFreqT;
+
+typedef struct 
+{
+    unsigned char dcCal;                 // default: 3 (Periodic mode)
+    unsigned char speedUp;               // default: 0 (No speedup)
+    int trackTime;                       // default: 1    (=> time in uSec = (72 * 3 * trackTime) / 24e6       = 9uSec)
+    int refreshRateTime;                 // default: 2048 (=> time in uSec = (72 * 3 * refreshRateTime) / 24e6 = 18432uSec)
+} sdrplay_api_DcOffsetTunerT;
+
+typedef struct 
+{
+    sdrplay_api_Bw_MHzT bwType;          // default: sdrplay_api_BW_0_200
+    sdrplay_api_If_kHzT ifType;          // default: sdrplay_api_IF_Zero
+    sdrplay_api_LoModeT loMode;          // default: sdrplay_api_LO_Auto
+    sdrplay_api_GainT gain;
+    sdrplay_api_RfFreqT rfFreq;
+    sdrplay_api_DcOffsetTunerT dcOffsetTuner;
+} sdrplay_api_TunerParamsT;
+
+#endif //SDRPLAY_API_TUNER_H

build.gradle

@@ -1,3 +1,5 @@
+import java.text.SimpleDateFormat
+
 /*
  * *****************************************************************************
  * Copyright (C) 2014-2022 Dennis Sheirer
@@ -28,8 +30,14 @@ repositories {
     maven { url "https://jitpack.io" }
 }
 
-version = '0.5.1'
-sourceCompatibility = '17'
+version = '0.6.0-alpha1'
+
+//Java 19 is required for this version of the Project Panama preview/incubator feature
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(19)
+    }
+}
 
 sourceSets {
     main.java.srcDirs 'src/main'
@@ -91,9 +99,10 @@ dependencies {
 }
 
 /**
- * This is needed for the JDK17 vector API ... until it moves out of incubation
+ * This is needed for the JDK19 panama and vector API ... until it moves out of incubation or preview
  */
 tasks.withType(JavaCompile) {
+    options.compilerArgs.add("--enable-preview") //Panama Foreign Function/Memory is preview in JDK 19
     options.compilerArgs.add("--add-modules=jdk.incubator.vector") //Needed while Panama Vector API remains in incubator
 }
 
@@ -101,8 +110,21 @@ application {
     mainClassName = "io.github.dsheirer.gui.SDRTrunk"
     applicationDefaultJvmArgs =
         ['--add-exports=javafx.base/com.sun.javafx.event=ALL-UNNAMED', //Needed for controls-fx.jar
-         '--add-modules=jdk.incubator.vector',   //Needed while Panama Vector API remains in incubator
-         '--add-exports=java.desktop/com.sun.java.swing.plaf.windows=ALL-UNNAMED'] //Windows Swing - jide-oss library
+         '--add-modules=jdk.incubator.vector',   //Needed while Project Panama API is still in incubator
+         '--enable-preview', //Project Panama Vector & Foreign Function APIs remain in incubator
+         '--enable-native-access=ALL-UNNAMED'] //Allows Project Panama Foreign Function access to system library
+
+    OperatingSystem os = org.gradle.nativeplatform.platform.internal.DefaultNativePlatform.currentOperatingSystem;
+    if(os.isWindows()) {
+        //Replace the default Java system library path with an explicit location for the SDRplay API library (Windows)
+        applicationDefaultJvmArgs.add('-Djava.library.path=c:\\Program Files\\SDRplay\\API\\x64')
+        //On windows, we also need to export the windows swing look & feel module
+        applicationDefaultJvmArgs.add('--add-exports=java.desktop/com.sun.java.swing.plaf.windows=ALL-UNNAMED')
+    }
+    else {
+        //Replace the default Java system library path with an explicit location for the SDRplay API library (Linux/OS-X)
+        applicationDefaultJvmArgs.add("-Djava.library.path=/usr/local/lib")
+    }
 }
 
 jar {
@@ -111,7 +133,7 @@ jar {
                 'Implementation-Title'  : 'sdrtrunk project',
                 'Implementation-Version' : archiveVersion,
                 'Created-By'            : "Gradle ${gradle.gradleVersion}",
-                'Build-Timestamp'       : new java.text.SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ").format(new Date()),
+                'Build-Timestamp'       : new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ").format(new Date()),
                 'Build-JDK'             : "${System.properties['java.version']} (${System.properties['java.vendor']} ${System.properties['java.vm.version']}",
                 'Build-OS'              : "${System.properties['os.name']} (${System.properties['os.arch']} ${System.properties['os.version']}"
         )
@@ -212,9 +234,10 @@ runtime {
     }
 
     //Additional modules to include with auto-detected modules.
-    //jdk.crypto.ec needed for HTTPS connections (broadcastify calls & map tile server)
+    //jdk.crypto.ec - needed for HTTPS connections (broadcastify calls & map tile server)
+    //jdk.incubator.vector - needed for Project Panama foreign function and vector apis
     //jdk.accessibility is used with assistive technologies like screen readers
-    modules = ['jdk.crypto.ec','jdk.accessibility']
+    modules = ['jdk.crypto.ec','jdk.incubator.vector','jdk.accessibility']
 
     //Use auto-detected modules and 'add' any specified modules.
     additive = true

src/main/java/io/github/dsheirer/gui/SDRTrunk.java

@@ -248,7 +248,11 @@ public class SDRTrunk implements Listener<TunerEvent>
                 {
                     mMainGui.setVisible(true);
                     Tuner tuner = tunerSpectralDisplayManager.showFirstTuner();
-                    updateTitle(tuner);
+
+                    if(tuner != null)
+                    {
+                        updateTitle(tuner.getPreferredName());
+                    }
                 }
 
                 if(calibrating && !GraphicsEnvironment.isHeadless())
@@ -630,21 +634,34 @@ public class SDRTrunk implements Listener<TunerEvent>
     @Override
     public void receive(TunerEvent event)
     {
-        if(event.getEvent() == TunerEvent.Event.REQUEST_MAIN_SPECTRAL_DISPLAY)
+        switch(event.getEvent())
         {
-            updateTitle(event.getTuner());
+            case REQUEST_MAIN_SPECTRAL_DISPLAY:
+                updateTitle(event.getTuner().getPreferredName());
+                break;
+            case REQUEST_CLEAR_MAIN_SPECTRAL_DISPLAY:
+                updateTitle(null);
+                break;
+            case NOTIFICATION_SHUTTING_DOWN:
+                Tuner currentTuner = mSpectralPanel.getTuner();
+
+                if(event.hasTuner() && event.getTuner().equals(currentTuner) || currentTuner == null)
+                {
+                    updateTitle(null);
+                }
+                break;
         }
     }
 
     /**
      * Updates the title bar with the tuner name
-     * @param tuner optional
+     * @param tunerName optional
      */
-    private void updateTitle(Tuner tuner)
+    private void updateTitle(String tunerName)
     {
-        if(tuner != null)
+        if(tunerName != null)
         {
-            mMainGui.setTitle(mTitle + " - " + tuner.getPreferredName());
+            mMainGui.setTitle(mTitle + " - " + tunerName);
         }
         else
         {

src/main/java/io/github/dsheirer/gui/preference/PreferenceEditorFactory.java

@@ -53,7 +53,7 @@ public class PreferenceEditorFactory
                 return new DirectoryPreferenceEditor(userPreferences);
             case JMBE_LIBRARY:
                 return new JmbeLibraryPreferenceEditor(userPreferences);
-            case SOURCE_TUNER_CHANNELIZER:
+            case SOURCE_TUNERS:
                 return new TunerPreferenceEditor(userPreferences);
             case TALKGROUP_FORMAT:
                 return new TalkgroupFormatPreferenceEditor(userPreferences);

src/main/java/io/github/dsheirer/gui/preference/PreferenceEditorType.java

@@ -31,7 +31,7 @@ public enum PreferenceEditorType
     AUDIO_RECORD("Record"),
     AUDIO_OUTPUT("Output/Tones"),
     AUDIO_DUPLICATE_CALL_DETECTION("Duplicate Calls"),
-    SOURCE_TUNER_CHANNELIZER("Tuner Channelizer"),
+    SOURCE_TUNERS("Tuners"),
     TALKGROUP_FORMAT("Talkgroup & Radio ID"),
     VECTOR_CALIBRATION("Vector Calibration"),
     DEFAULT("Default");

src/main/java/io/github/dsheirer/gui/preference/UserPreferencesEditor.java

@@ -22,6 +22,8 @@ package io.github.dsheirer.gui.preference;
 import io.github.dsheirer.eventbus.MyEventBus;
 import io.github.dsheirer.gui.playlist.ViewPlaylistRequest;
 import io.github.dsheirer.preference.UserPreferences;
+import java.util.EnumMap;
+import java.util.Map;
 import javafx.beans.value.ChangeListener;
 import javafx.beans.value.ObservableValue;
 import javafx.geometry.Insets;
@@ -44,9 +46,6 @@ import javafx.stage.Stage;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.EnumMap;
-import java.util.Map;
-
 /**
  * Preferences editor dialog
  */
@@ -196,7 +195,7 @@ public class UserPreferencesEditor extends BorderPane
             storageItem.setExpanded(true);
 
             TreeItem<String> sourceItem = new TreeItem<>("Source");
-            sourceItem.getChildren().add(new TreeItem(PreferenceEditorType.SOURCE_TUNER_CHANNELIZER));
+            sourceItem.getChildren().add(new TreeItem(PreferenceEditorType.SOURCE_TUNERS));
             treeRoot.getChildren().add(sourceItem);
             sourceItem.setExpanded(true);
 

src/main/java/io/github/dsheirer/gui/preference/tuner/RspDuoSelectionMode.java

@@ -0,0 +1,62 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2022 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.gui.preference.tuner;
+
+/**
+ * RSPduo tuner select mode preferences.
+ */
+public enum RspDuoSelectionMode
+{
+    DUAL("Dual Tuner"),
+    SINGLE_1("Single Tuner 1"),
+    SINGLE_2("Single Tuner 2");
+
+    private String mLabel;
+
+    RspDuoSelectionMode(String label)
+    {
+        mLabel = label;
+    }
+
+    @Override
+    public String toString()
+    {
+        return mLabel;
+    }
+
+    /**
+     * Lookup the enum entry from the value.
+     * @param value to match
+     * @return matched value or (default) DUAL if the value couldn't be matched.
+     */
+    public static RspDuoSelectionMode fromValue(String value)
+    {
+        try
+        {
+            return RspDuoSelectionMode.valueOf(value);
+        }
+        catch(Exception e)
+        {
+            //Do nothing
+        }
+
+        return DUAL;
+    }
+}

src/main/java/io/github/dsheirer/gui/preference/tuner/TunerPreferenceEditor.java

@@ -1,23 +1,20 @@
 /*
+ * *****************************************************************************
+ * Copyright (C) 2014-2022 Dennis Sheirer
  *
- *  * ******************************************************************************
- *  * Copyright (C) 2014-2020 Dennis Sheirer
- *  *
- *  * This program is free software: you can redistribute it and/or modify
- *  * it under the terms of the GNU General Public License as published by
- *  * the Free Software Foundation, either version 3 of the License, or
- *  * (at your option) any later version.
- *  *
- *  * This program is distributed in the hope that it will be useful,
- *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  * GNU General Public License for more details.
- *  *
- *  * You should have received a copy of the GNU General Public License
- *  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *  * *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
  */
 
 package io.github.dsheirer.gui.preference.tuner;
@@ -55,6 +52,8 @@ public class TunerPreferenceEditor extends HBox
     private Label mHelpTextPolyphaseLabel;
     private Label mHeterodyneLabel;
     private Label mHelpTextHeterodyneLabel;
+    private ChoiceBox<RspDuoSelectionMode> mRspDuoTunerModeChoiceBox;
+    private Label mRspDuoModeLabel;
 
     public TunerPreferenceEditor(UserPreferences userPreferences)
     {
@@ -66,19 +65,24 @@ public class TunerPreferenceEditor extends HBox
     {
         if(mEditorPane == null)
         {
+            int row = 0;
             mEditorPane = new GridPane();
             mEditorPane.setVgap(10);
             mEditorPane.setHgap(10);
             mEditorPane.setPadding(new Insets(10, 10, 10, 10));
-            GridPane.setHalignment(getChannelizerLabel(), HPos.LEFT);
-            mEditorPane.add(getChannelizerLabel(), 0, 0);
-            mEditorPane.add(getChannelizerTypeChoiceBox(), 1, 0);
-            mEditorPane.add(new Separator(Orientation.HORIZONTAL), 0, 1, 2, 1);
-            mEditorPane.add(getPolyphaseLabel(), 0, 2, 2, 1);
-            mEditorPane.add(getHelpTextPolyphaseLabel(), 0, 3, 2, 3);
-            mEditorPane.add(new Label(" "), 0, 6);
-            mEditorPane.add(getHeterodyneLabel(), 0, 7, 2, 1);
-            mEditorPane.add(getHelpTextHeterodyneLabel(), 0, 8, 2, 3);
+            GridPane.setHalignment(getChannelizerLabel(), HPos.RIGHT);
+            mEditorPane.add(getChannelizerLabel(), 0, row);
+            mEditorPane.add(getChannelizerTypeChoiceBox(), 1, row);
+            mEditorPane.add(getPolyphaseLabel(), 0, ++row, 2, 1);
+            mEditorPane.add(getHelpTextPolyphaseLabel(), 0, ++row, 2, 3);
+            row += 3;
+            mEditorPane.add(new Label(" "), 0, row);
+            mEditorPane.add(getHeterodyneLabel(), 0, ++row, 2, 1);
+            mEditorPane.add(getHelpTextHeterodyneLabel(), 0, ++row, 2, 3);
+            row += 3;
+            mEditorPane.add(new Separator(Orientation.HORIZONTAL), 0, row, 2, 1);
+            mEditorPane.add(getRspDuoModeLabel(), 0, ++row);
+            mEditorPane.add(getRspDuoTunerModeChoiceBox(), 1, row);
         }
 
         return mEditorPane;
@@ -161,4 +165,40 @@ public class TunerPreferenceEditor extends HBox
 
         return mHelpTextHeterodyneLabel;
     }
+
+    private ChoiceBox<RspDuoSelectionMode> getRspDuoTunerModeChoiceBox()
+    {
+        if(mRspDuoTunerModeChoiceBox == null)
+        {
+            mRspDuoTunerModeChoiceBox = new ChoiceBox<>();
+            mRspDuoTunerModeChoiceBox.getItems().addAll(RspDuoSelectionMode.values());
+
+            RspDuoSelectionMode current = mTunerPreference.getRspDuoTunerMode();
+            mRspDuoTunerModeChoiceBox.getSelectionModel().select(current);
+
+            mRspDuoTunerModeChoiceBox.setOnAction(event -> {
+                RspDuoSelectionMode selected = mRspDuoTunerModeChoiceBox.getSelectionModel().getSelectedItem();
+                mTunerPreference.setRspDuoTunerMode(selected);
+
+                Label label = new Label("Please restart the application for this change to take effect");
+                label.setWrapText(true);
+                Alert alert = new Alert(Alert.AlertType.WARNING);
+                alert.getDialogPane().setContent(label);
+                alert.initOwner(((Node)getRspDuoTunerModeChoiceBox()).getScene().getWindow());
+                alert.show();
+            });
+        }
+
+        return mRspDuoTunerModeChoiceBox;
+    }
+
+    private Label getRspDuoModeLabel()
+    {
+        if(mRspDuoModeLabel == null)
+        {
+            mRspDuoModeLabel = new Label("SDRPlay RSPduo Selection Mode");
+        }
+
+        return mRspDuoModeLabel;
+    }
 }

src/main/java/io/github/dsheirer/preference/source/TunerPreference.java

@@ -19,14 +19,14 @@
 
 package io.github.dsheirer.preference.source;
 
+import io.github.dsheirer.gui.preference.tuner.RspDuoSelectionMode;
 import io.github.dsheirer.preference.Preference;
 import io.github.dsheirer.preference.PreferenceType;
 import io.github.dsheirer.sample.Listener;
+import java.util.prefs.Preferences;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.prefs.Preferences;
-
 /**
  * Tuner preferences
  */
@@ -35,8 +35,10 @@ public class TunerPreference extends Preference
     private final static Logger mLog = LoggerFactory.getLogger(TunerPreference.class);
     private Preferences mPreferences = Preferences.userNodeForPackage(TunerPreference.class);
     private static final String PREFERENCE_KEY_CHANNELIZER_TYPE = "channelizer.type";
+    private static final String PREFERENCE_KEY_RSP_DUO_TUNER_MODE = "rsp.duo.tuner.mode";
 
     private ChannelizerType mChannelizerType;
+    private RspDuoSelectionMode mRspDuoSelectionMode;
 
     /**
      * Constructs a tuner preference with the update listener
@@ -94,4 +96,30 @@ public class TunerPreference extends Preference
         mPreferences.put(PREFERENCE_KEY_CHANNELIZER_TYPE, mChannelizerType.name());
         notifyPreferenceUpdated();
     }
+
+    /**
+     * RSPduo tuner select mode.
+     * @return mode or a default value of DUAL
+     */
+    public RspDuoSelectionMode getRspDuoTunerMode()
+    {
+        if(mRspDuoSelectionMode == null)
+        {
+            String mode = mPreferences.get(PREFERENCE_KEY_RSP_DUO_TUNER_MODE, RspDuoSelectionMode.DUAL.name());
+            mRspDuoSelectionMode = RspDuoSelectionMode.fromValue(mode);
+        }
+
+        return mRspDuoSelectionMode;
+    }
+
+    /**
+     * Sets the RSPduo tuner select mode
+     * @param mode to use
+     */
+    public void setRspDuoTunerMode(RspDuoSelectionMode mode)
+    {
+        mRspDuoSelectionMode = mode;
+        mPreferences.put(PREFERENCE_KEY_RSP_DUO_TUNER_MODE, mRspDuoSelectionMode.name());
+        notifyPreferenceUpdated();
+    }
 }

src/main/java/io/github/dsheirer/sample/Broadcaster.java

@@ -18,12 +18,13 @@
  */
 package io.github.dsheirer.sample;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.locks.ReentrantLock;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * Broadcasts an item to multiple listeners
@@ -100,6 +101,10 @@ public class Broadcaster<T> implements Listener<T>
                     mListeners.add(listener);
                 }
             }
+            catch(Exception e)
+            {
+                mLog.error("Unexpected error while adding listener", e);
+            }
             finally
             {
                 mLock.unlock();
@@ -120,6 +125,10 @@ public class Broadcaster<T> implements Listener<T>
             {
                 mListeners.remove(listener);
             }
+            catch(Exception e)
+            {
+                mLog.error("Unexpected error while removing listener", e);
+            }
             finally
             {
                 mLock.unlock();
@@ -151,6 +160,10 @@ public class Broadcaster<T> implements Listener<T>
                 listener.receive(t);
             }
         }
+        catch(Exception e)
+        {
+            mLog.error("Unexpected error while broadcasting to listeners", e);
+        }
         finally
         {
             mLock.unlock();

src/main/java/io/github/dsheirer/source/tuner/ITunerErrorListener.java

@@ -1,23 +1,20 @@
 /*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
- *  * ******************************************************************************
- *  * Copyright (C) 2014-2020 Dennis Sheirer
- *  *
- *  * This program is free software: you can redistribute it and/or modify
- *  * it under the terms of the GNU General Public License as published by
- *  * the Free Software Foundation, either version 3 of the License, or
- *  * (at your option) any later version.
- *  *
- *  * This program is distributed in the hope that it will be useful,
- *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  * GNU General Public License for more details.
- *  *
- *  * You should have received a copy of the GNU General Public License
- *  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *  * *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
  */
 
 package io.github.dsheirer.source.tuner;
@@ -29,4 +26,9 @@ public interface ITunerErrorListener
      * @param errorMessage to set
      */
     void setErrorMessage(String errorMessage);
+
+    /**
+     * Indicates that the tuner has been removed from the system.
+     */
+    void tunerRemoved();
 }

src/main/java/io/github/dsheirer/source/tuner/LoggingTunerErrorListener.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -34,4 +34,10 @@ public class LoggingTunerErrorListener implements ITunerErrorListener
     {
         mLog.error("Tuner Error: " + errorMessage);
     }
+
+    @Override
+    public void tunerRemoved()
+    {
+        mLog.warn("Tuner removal detected");
+    }
 }

src/main/java/io/github/dsheirer/source/tuner/Tuner.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -149,6 +149,20 @@ public abstract class Tuner implements ISourceEventProcessor, ITunerErrorListene
         }
     }
 
+    /**
+     * Process tuner removal error from tuner controller and propagate to an external listener.
+     */
+    @Override
+    public void tunerRemoved()
+    {
+        stop();
+
+        if(mTunerErrorListener != null)
+        {
+            mTunerErrorListener.tunerRemoved();
+        }
+    }
+
     /**
      * Sets the channel source manager
      * @param manager to use

src/main/java/io/github/dsheirer/source/tuner/TunerClass.java

@@ -30,6 +30,7 @@ public enum TunerClass
 	FUNCUBE_DONGLE_PRO_PLUS("Funcube Dongle Pro+" ),
 	HACKRF("HackRF" ),
 	RTL2832("RTL-2832"),
+	RSP("RSP"),
 	TEST_TUNER("Test"),
 	RECORDING_TUNER("Recording"),
 	UNKNOWN("Unknown" );

src/main/java/io/github/dsheirer/source/tuner/TunerController.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -46,7 +46,11 @@ public abstract class TunerController implements Tunable, ISourceEventProcessor,
         INativeBufferProvider, Listener<INativeBuffer>, ITunerErrorListener
 {
     private final static Logger mLog = LoggerFactory.getLogger(TunerController.class);
+
+    //Protects access to the native buffer broadcaster for adding, removing or checking for listener count.
+    protected ReentrantLock mBufferListenerLock = new ReentrantLock();
     protected Broadcaster<INativeBuffer> mNativeBufferBroadcaster = new Broadcaster();
+
     protected FrequencyController mFrequencyController;
     private int mMiddleUnusableHalfBandwidth;
     private int mMeasuredFrequencyError;
@@ -129,6 +133,19 @@ public abstract class TunerController implements Tunable, ISourceEventProcessor,
         }
     }
 
+    /**
+     * Indicates that the tuner has been removed from the system and requests the listener to process the cleanup.
+     */
+    @Override
+    public void tunerRemoved()
+    {
+        //Request parent tuner process the shutdown and cleanup
+        if(mTunerErrorListener != null)
+        {
+            mTunerErrorListener.tunerRemoved();
+        }
+    }
+
     /**
      * Number of samples contained in each complex buffer provided by this tuner.
      *
@@ -572,7 +589,16 @@ public abstract class TunerController implements Tunable, ISourceEventProcessor,
     @Override
     public void addBufferListener(Listener<INativeBuffer> listener)
     {
-        mNativeBufferBroadcaster.addListener(listener);
+        mBufferListenerLock.lock();
+
+        try
+        {
+            mNativeBufferBroadcaster.addListener(listener);
+        }
+        finally
+        {
+            mBufferListenerLock.unlock();
+        }
     }
 
     /**
@@ -581,7 +607,16 @@ public abstract class TunerController implements Tunable, ISourceEventProcessor,
     @Override
     public void removeBufferListener(Listener<INativeBuffer> listener)
     {
-        mNativeBufferBroadcaster.removeListener(listener);
+        mBufferListenerLock.lock();
+
+        try
+        {
+            mNativeBufferBroadcaster.removeListener(listener);
+        }
+        finally
+        {
+            mBufferListenerLock.unlock();
+        }
     }
 
     /**
@@ -590,7 +625,20 @@ public abstract class TunerController implements Tunable, ISourceEventProcessor,
     @Override
     public boolean hasBufferListeners()
     {
-        return mNativeBufferBroadcaster.hasListeners();
+        boolean hasListeners;
+
+        mBufferListenerLock.lock();
+
+        try
+        {
+            hasListeners = mNativeBufferBroadcaster.hasListeners();
+        }
+        finally
+        {
+            mBufferListenerLock.unlock();
+        }
+
+        return hasListeners;
     }
 
     /**
@@ -598,6 +646,7 @@ public abstract class TunerController implements Tunable, ISourceEventProcessor,
      */
     protected void broadcast(INativeBuffer complexSamples)
     {
+        //Note: unprotected access to the broadcaster ... the broadcaster uses thread-save internal list
         mNativeBufferBroadcaster.broadcast(complexSamples);
     }
 

src/main/java/io/github/dsheirer/source/tuner/TunerEvent.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -54,6 +54,24 @@ public class TunerEvent
         return mTuner != null;
     }
 
+    @Override
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Tuner Event [").append(getEvent().name()).append("] for tuner [");
+        if(hasTuner())
+        {
+            sb.append(getTuner());
+        }
+        else
+        {
+            sb.append("No Tuner");
+        }
+
+        sb.append("]");
+        return sb.toString();
+    }
+
     /**
      * Event type
      */
@@ -75,6 +93,7 @@ public class TunerEvent
         NOTIFICATION_SHUTTING_DOWN,
 
         REQUEST_CLEAR_MAIN_SPECTRAL_DISPLAY,
+        REQUEST_ENABLE_RSP_SLAVE_DEVICE,
         REQUEST_MAIN_SPECTRAL_DISPLAY,
         REQUEST_NEW_SPECTRAL_DISPLAY;
     }

src/main/java/io/github/dsheirer/source/tuner/TunerFactory.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,6 +19,7 @@
 
 package io.github.dsheirer.source.tuner;
 
+import io.github.dsheirer.gui.preference.tuner.RspDuoSelectionMode;
 import io.github.dsheirer.preference.UserPreferences;
 import io.github.dsheirer.preference.source.ChannelizerType;
 import io.github.dsheirer.source.SourceException;
@@ -53,7 +54,60 @@ import io.github.dsheirer.source.tuner.rtl.e4k.E4KTunerEditor;
 import io.github.dsheirer.source.tuner.rtl.r820t.R820TEmbeddedTuner;
 import io.github.dsheirer.source.tuner.rtl.r820t.R820TTunerConfiguration;
 import io.github.dsheirer.source.tuner.rtl.r820t.R820TTunerEditor;
+import io.github.dsheirer.source.tuner.sdrplay.DiscoveredRspTuner;
+import io.github.dsheirer.source.tuner.sdrplay.RspTuner;
+import io.github.dsheirer.source.tuner.sdrplay.api.DeviceSelectionMode;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.Device;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.DeviceInfo;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.Rsp1Device;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.Rsp1aDevice;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.Rsp2Device;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.RspDuoDevice;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.RspDxDevice;
+import io.github.dsheirer.source.tuner.sdrplay.rsp1.ControlRsp1;
+import io.github.dsheirer.source.tuner.sdrplay.rsp1.DiscoveredRsp1Tuner;
+import io.github.dsheirer.source.tuner.sdrplay.rsp1.IControlRsp1;
+import io.github.dsheirer.source.tuner.sdrplay.rsp1.Rsp1TunerConfiguration;
+import io.github.dsheirer.source.tuner.sdrplay.rsp1.Rsp1TunerController;
+import io.github.dsheirer.source.tuner.sdrplay.rsp1.Rsp1TunerEditor;
+import io.github.dsheirer.source.tuner.sdrplay.rsp1a.ControlRsp1a;
+import io.github.dsheirer.source.tuner.sdrplay.rsp1a.DiscoveredRsp1aTuner;
+import io.github.dsheirer.source.tuner.sdrplay.rsp1a.IControlRsp1a;
+import io.github.dsheirer.source.tuner.sdrplay.rsp1a.Rsp1aTunerConfiguration;
+import io.github.dsheirer.source.tuner.sdrplay.rsp1a.Rsp1aTunerController;
+import io.github.dsheirer.source.tuner.sdrplay.rsp1a.Rsp1aTunerEditor;
+import io.github.dsheirer.source.tuner.sdrplay.rsp2.ControlRsp2;
+import io.github.dsheirer.source.tuner.sdrplay.rsp2.DiscoveredRsp2Tuner;
+import io.github.dsheirer.source.tuner.sdrplay.rsp2.IControlRsp2;
+import io.github.dsheirer.source.tuner.sdrplay.rsp2.Rsp2TunerConfiguration;
+import io.github.dsheirer.source.tuner.sdrplay.rsp2.Rsp2TunerController;
+import io.github.dsheirer.source.tuner.sdrplay.rsp2.Rsp2TunerEditor;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.ControlRspDuoTuner1Master;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.ControlRspDuoTuner1Single;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.ControlRspDuoTuner2Single;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.ControlRspDuoTuner2Slave;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.DiscoveredRspDuoTuner1;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.DiscoveredRspDuoTuner2;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.IControlRspDuoTuner1;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.IControlRspDuoTuner2;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.MasterSlaveBridge;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.RspDuoTuner1Configuration;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.RspDuoTuner1Controller;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.RspDuoTuner1Editor;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.RspDuoTuner2Configuration;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.RspDuoTuner2Controller;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.RspDuoTuner2Editor;
+import io.github.dsheirer.source.tuner.sdrplay.rspDx.ControlRspDx;
+import io.github.dsheirer.source.tuner.sdrplay.rspDx.DiscoveredRspDxTuner;
+import io.github.dsheirer.source.tuner.sdrplay.rspDx.IControlRspDx;
+import io.github.dsheirer.source.tuner.sdrplay.rspDx.RspDxTunerConfiguration;
+import io.github.dsheirer.source.tuner.sdrplay.rspDx.RspDxTunerController;
+import io.github.dsheirer.source.tuner.sdrplay.rspDx.RspDxTunerEditor;
 import io.github.dsheirer.source.tuner.ui.TunerEditor;
+import java.util.ArrayList;
+import java.util.List;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -66,6 +120,182 @@ public class TunerFactory
 {
     private static final Logger mLog = LoggerFactory.getLogger(TunerFactory.class);
 
+    /**
+     * Creates one or two (e.g. RSPduo) Discovered RSP tuner instances for the RSP device.
+     * @param deviceInfo describing the RSP device
+     * @param channelizerType to use with the device
+     * @param selectionMode to specify how to configure an RSPduo dual-tuner device.
+     * @return zero or more discovered RSP tuners.
+     */
+    public static List<DiscoveredRspTuner> getRspTuners(DeviceInfo deviceInfo, ChannelizerType channelizerType, RspDuoSelectionMode selectionMode)
+    {
+        List<DiscoveredRspTuner> tuners = new ArrayList<>();
+
+        switch(deviceInfo.getDeviceType())
+        {
+            case RSP1:
+                tuners.add(new DiscoveredRsp1Tuner(deviceInfo, channelizerType));
+                break;
+            case RSP1A:
+                tuners.add(new DiscoveredRsp1aTuner(deviceInfo, channelizerType));
+                break;
+            case RSP2:
+                tuners.add(new DiscoveredRsp2Tuner(deviceInfo, channelizerType));
+                break;
+            case RSPdx:
+                tuners.add(new DiscoveredRspDxTuner(deviceInfo, channelizerType));
+                break;
+            case RSPduo:
+                switch(selectionMode)
+                {
+                    case SINGLE_1:
+                        deviceInfo.setDeviceSelectionMode(DeviceSelectionMode.SINGLE_TUNER_1);
+                        tuners.add(new DiscoveredRspDuoTuner1(deviceInfo, channelizerType));
+                        break;
+                    case SINGLE_2:
+                        deviceInfo.setDeviceSelectionMode(DeviceSelectionMode.SINGLE_TUNER_2);
+                        tuners.add(new DiscoveredRspDuoTuner2(deviceInfo, channelizerType));
+                        break;
+                    case DUAL:
+                        MasterSlaveBridge bridge = new MasterSlaveBridge();
+                        deviceInfo.setDeviceSelectionMode(DeviceSelectionMode.MASTER_TUNER_1);
+                        tuners.add(new DiscoveredRspDuoTuner1(deviceInfo, channelizerType, bridge));
+
+                        DeviceInfo deviceInfoTuner2 = deviceInfo.clone();
+                        deviceInfoTuner2.setDeviceSelectionMode(DeviceSelectionMode.SLAVE_TUNER_2);
+                        tuners.add(new DiscoveredRspDuoTuner2(deviceInfoTuner2, channelizerType, bridge));
+                        break;
+                }
+                break;
+        }
+
+        return tuners;
+    }
+
+    /**
+     * Locates the matching RSP device described by the device info object and creates an RSP tuner instance.
+     * @param deviceInfo to match
+     * @param channelizerType for the tuner
+     * @param tunerErrorListener to monitor the tuner's status
+     * @return constructed RSP tuner instance
+     * @throws SDRPlayException if the device is not available or is not supported
+     */
+    public static RspTuner getRspTuner(DeviceInfo deviceInfo, ChannelizerType channelizerType,
+                                       ITunerErrorListener tunerErrorListener) throws SDRPlayException
+    {
+        //API instance is retained across the lifecycle of the constructed device, so we only close it if we don't get
+        //a device from it.
+        SDRplay api = new SDRplay();
+
+        if(api.isAvailable())
+        {
+            Device device = api.getDevice(deviceInfo);
+
+            switch(device.getDeviceType())
+            {
+                case RSP1:
+                    if(device instanceof Rsp1Device rsp1Device)
+                    {
+                        IControlRsp1 controlRsp1 = new ControlRsp1(rsp1Device);
+                        Rsp1TunerController rsp1TunerController = new Rsp1TunerController(controlRsp1, tunerErrorListener);
+                        return new RspTuner(rsp1TunerController, tunerErrorListener, channelizerType);
+                    }
+                    break;
+                case RSP1A:
+                    if(device instanceof Rsp1aDevice rsp1aDevice)
+                    {
+                        IControlRsp1a controlRsp1a = new ControlRsp1a(rsp1aDevice);
+                        Rsp1aTunerController rsp1aTunerController = new Rsp1aTunerController(controlRsp1a, tunerErrorListener);
+                        return new RspTuner(rsp1aTunerController, tunerErrorListener, channelizerType);
+                    }
+                    break;
+                case RSP2:
+                    if(device instanceof Rsp2Device rsp2Device)
+                    {
+                        IControlRsp2 controlRsp2 = new ControlRsp2(rsp2Device);
+                        Rsp2TunerController rsp2TunerController = new Rsp2TunerController(controlRsp2, tunerErrorListener);
+                        return new RspTuner(rsp2TunerController, tunerErrorListener, channelizerType);
+                    }
+                    break;
+                case RSPdx:
+                    if(device instanceof RspDxDevice rspDxDevice)
+                    {
+                        IControlRspDx controlRspDx = new ControlRspDx(rspDxDevice);
+                        RspDxTunerController rspDxTunerController = new RspDxTunerController(controlRspDx, tunerErrorListener);
+                        return new RspTuner(rspDxTunerController, tunerErrorListener, channelizerType);
+                    }
+                    break;
+                case RSPduo:
+                    if(device instanceof RspDuoDevice rspDuoDevice)
+                    {
+                        switch(deviceInfo.getDeviceSelectionMode())
+                        {
+                            case SINGLE_TUNER_1:
+                                IControlRspDuoTuner1 controlRspDuoTuner1 = new ControlRspDuoTuner1Single(rspDuoDevice);
+                                RspDuoTuner1Controller rspDuoTuner1Controller = new RspDuoTuner1Controller(controlRspDuoTuner1, tunerErrorListener);
+                                return new RspTuner(rspDuoTuner1Controller, tunerErrorListener, channelizerType);
+                            case SINGLE_TUNER_2:
+                                IControlRspDuoTuner2 controlRspDuoTuner2 = new ControlRspDuoTuner2Single(rspDuoDevice);
+                                RspDuoTuner2Controller rspDuoTuner2Controller = new RspDuoTuner2Controller(controlRspDuoTuner2, tunerErrorListener);
+                                return new RspTuner(rspDuoTuner2Controller, tunerErrorListener, channelizerType);
+                            default:
+                                throw new SDRPlayException("This method only supports RSPduo single tuner configurations");
+                        }
+                    }
+                    break;
+                case default:
+                    mLog.warn("Unrecognized SDRplay RSP Device Type: " + device.getDeviceType() + " SER#: " + device.getSerialNumber());
+                    break;
+            }
+        }
+
+        throw new SDRPlayException("Unable to obtain RSP tuner");
+    }
+
+    /**
+     * Locates the matching RSP device described by the device info object and creates an RSP tuner instance.
+     * @param deviceInfo to match
+     * @param channelizerType for the tuner
+     * @param tunerErrorListener to monitor the tuner's status
+     * @param bridge to link master/slave instances together
+     * @return constructed RSP tuner instance
+     * @throws SDRPlayException if the device is not available or is not supported
+     */
+    public static RspTuner getRspDuoTuner(DeviceInfo deviceInfo, ChannelizerType channelizerType,
+                                       ITunerErrorListener tunerErrorListener, MasterSlaveBridge bridge) throws SDRPlayException
+    {
+        SDRplay api = new SDRplay();
+
+        if(api.isAvailable())
+        {
+            Device device = api.getDevice(deviceInfo);
+
+            switch(device.getDeviceType())
+            {
+                case RSPduo:
+                    if(device instanceof RspDuoDevice rspDuoDevice)
+                    {
+                        switch(deviceInfo.getDeviceSelectionMode())
+                        {
+                            case MASTER_TUNER_1:
+                                IControlRspDuoTuner1 controlRspDuoTuner1 = new ControlRspDuoTuner1Master(rspDuoDevice, bridge);
+                                RspDuoTuner1Controller rspDuoTuner1Controller = new RspDuoTuner1Controller(controlRspDuoTuner1, tunerErrorListener);
+                                return new RspTuner(rspDuoTuner1Controller, tunerErrorListener, channelizerType);
+                            case SLAVE_TUNER_2:
+                                IControlRspDuoTuner2 controlRspDuoTuner2 = new ControlRspDuoTuner2Slave(rspDuoDevice, bridge);
+                                RspDuoTuner2Controller rspDuoTuner2Controller = new RspDuoTuner2Controller(controlRspDuoTuner2, tunerErrorListener);
+                                return new RspTuner(rspDuoTuner2Controller, tunerErrorListener, channelizerType);
+                            default:
+                                throw new SDRPlayException("This method only supports RSPduo single tuner configurations");
+                        }
+                    }
+                    break;
+            }
+        }
+
+        throw new SDRPlayException("Unable to obtain RSPduo tuner");
+    }
+
     /**
      * Create a USB tuner
      * @param tunerClass to instantiate
@@ -148,6 +378,18 @@ public class TunerFactory
                 return new R820TTunerConfiguration(uniqueID);
             case RECORDING:
                 return RecordingTunerConfiguration.create();
+            case RSP_1:
+                return new Rsp1TunerConfiguration(uniqueID);
+            case RSP_1A:
+                return new Rsp1aTunerConfiguration(uniqueID);
+            case RSP_2:
+                return new Rsp2TunerConfiguration(uniqueID);
+            case RSP_DUO_1:
+                return new RspDuoTuner1Configuration(uniqueID);
+            case RSP_DUO_2:
+                return new RspDuoTuner2Configuration(uniqueID);
+            case RSP_DX:
+                return new RspDxTunerConfiguration(uniqueID);
             default:
                 throw new IllegalArgumentException("Unrecognized tuner type [" + type.name() + "]");
         }
@@ -169,6 +411,42 @@ public class TunerFactory
                 return new FCD2TunerEditor(userPreferences, tunerManager, discoveredTuner);
             case HACKRF:
                 return new HackRFTunerEditor(userPreferences, tunerManager, discoveredTuner);
+            case RSP:
+                if(discoveredTuner instanceof DiscoveredRspTuner discoveredRspTuner)
+                {
+                    switch(discoveredRspTuner.getDeviceType())
+                    {
+                        case RSP1:
+                            return new Rsp1TunerEditor(userPreferences, tunerManager, discoveredRspTuner);
+                        case RSP1A:
+                            return new Rsp1aTunerEditor(userPreferences, tunerManager, discoveredRspTuner);
+                        case RSP2:
+                            return new Rsp2TunerEditor(userPreferences, tunerManager, discoveredRspTuner);
+                        case RSPdx:
+                            return new RspDxTunerEditor(userPreferences, tunerManager, discoveredRspTuner);
+                        case RSPduo:
+                            if(discoveredRspTuner instanceof DiscoveredRspDuoTuner1 duoTuner1)
+                            {
+                                return new RspDuoTuner1Editor(userPreferences, tunerManager, duoTuner1);
+                            }
+                            else if(discoveredRspTuner instanceof DiscoveredRspDuoTuner2 duoTuner2)
+                            {
+                                return new RspDuoTuner2Editor(userPreferences, tunerManager, duoTuner2);
+                            }
+                            else
+                            {
+                                throw new IllegalArgumentException("Unrecognized RSPduo device type:" +
+                                        discoveredRspTuner.getClass());
+                            }
+                        case UNKNOWN:
+                            throw new IllegalArgumentException("Unrecognized RSP device type: " +
+                                    discoveredRspTuner.getDeviceType());
+                    }
+                }
+                throw new IllegalArgumentException("Unrecognized discovered RSP tuner class: " +
+                        discoveredTuner.getClass());
+            case RECORDING_TUNER:
+                return new RecordingTunerEditor(userPreferences, tunerManager, discoveredTuner);
             case RTL2832:
                 if(discoveredTuner.hasTuner())
                 {
@@ -181,8 +459,6 @@ public class TunerFactory
                     }
                 }
                 return new RTL2832UnknownTunerEditor(userPreferences, tunerManager, discoveredTuner);
-            case RECORDING_TUNER:
-                return new RecordingTunerEditor(userPreferences, tunerManager, discoveredTuner);
             case TEST_TUNER:
             case UNKNOWN:
             default:

src/main/java/io/github/dsheirer/source/tuner/TunerType.java

@@ -37,6 +37,13 @@ public enum TunerType
     HACKRF_RAD1O("RAD1O"),
     RAFAELMICRO_R820T("R820T"),
     RAFAELMICRO_R828D("R828D"),
+    RSP_1("RSP1"),
+    RSP_1A("RSP1A"),
+    RSP_2("RSP2"),
+    RSP_DUO_1("RSPduo Tuner 1"),
+    RSP_DUO_2("RSPduo Tuner 2"),
+    RSP_DX("RSPdx"),
+
     TEST("Test"),
     RECORDING("Recording"),
     UNKNOWN("Unknown");

src/main/java/io/github/dsheirer/source/tuner/configuration/TunerConfiguration.java

@@ -31,6 +31,7 @@ import io.github.dsheirer.source.tuner.hackrf.HackRFTunerConfiguration;
 import io.github.dsheirer.source.tuner.recording.RecordingTunerConfiguration;
 import io.github.dsheirer.source.tuner.rtl.e4k.E4KTunerConfiguration;
 import io.github.dsheirer.source.tuner.rtl.r820t.R820TTunerConfiguration;
+import io.github.dsheirer.source.tuner.sdrplay.RspTunerConfiguration;
 
 /**
  * Abstract class to hold a configuration for a specific type of tuner
@@ -44,6 +45,7 @@ import io.github.dsheirer.source.tuner.rtl.r820t.R820TTunerConfiguration;
         @JsonSubTypes.Type(value = HackRFTunerConfiguration.class, name = "hackRFTunerConfiguration"),
         @JsonSubTypes.Type(value = RecordingTunerConfiguration.class, name = "recordingTunerConfiguration"),
         @JsonSubTypes.Type(value = R820TTunerConfiguration.class, name = "r820TTunerConfiguration"),
+        @JsonSubTypes.Type(value = RspTunerConfiguration.class, name = "rspTunerConfiguration"),
 })
 @JacksonXmlRootElement(localName = "tuner_configuration")
 public abstract class TunerConfiguration

src/main/java/io/github/dsheirer/source/tuner/configuration/TunerConfigurationManager.java

@@ -147,6 +147,12 @@ public class TunerConfigurationManager implements IDiscoveredTunerStatusListener
         }
     }
 
+    /**
+     * Monitors discovered tuner enabled status and applies configurations or updates disable state of tuners.
+     * @param discoveredTuner that has a status change.
+     * @param previous tuner status
+     * @param current tuner status
+     */
     @Override
     public void tunerStatusUpdated(DiscoveredTuner discoveredTuner, TunerStatus previous, TunerStatus current)
     {
@@ -157,6 +163,23 @@ public class TunerConfigurationManager implements IDiscoveredTunerStatusListener
         else if(current == TunerStatus.ENABLED)
         {
             removeDisabledTuner(discoveredTuner);
+
+            if(discoveredTuner.hasTuner())
+            {
+                TunerType tunerType = discoveredTuner.getTuner().getTunerType();
+
+                if(tunerType != TunerType.RECORDING)
+                {
+                    TunerConfiguration tunerConfiguration = getTunerConfiguration(tunerType, discoveredTuner.getId());
+
+                    if(tunerConfiguration != null)
+                    {
+                        discoveredTuner.setTunerConfiguration(tunerConfiguration);
+                        saveConfigurations();
+                    }
+                }
+            }
+
         }
     }
 

src/main/java/io/github/dsheirer/source/tuner/manager/DiscoveredTuner.java

@@ -219,7 +219,10 @@ public abstract class DiscoveredTuner implements ITunerErrorListener
      */
     public void addTunerStatusListener(IDiscoveredTunerStatusListener listener)
     {
-        mListeners.add(listener);
+        if(!mListeners.contains(listener))
+        {
+            mListeners.add(listener);
+        }
     }
 
     /**
@@ -257,6 +260,12 @@ public abstract class DiscoveredTuner implements ITunerErrorListener
         setTunerStatus(TunerStatus.ERROR);
     }
 
+    @Override
+    public void tunerRemoved()
+    {
+        setTunerStatus(TunerStatus.REMOVED);
+    }
+
     /**
      * Indicates if this tuner has an error message.
      */

src/main/java/io/github/dsheirer/source/tuner/manager/TunerManager.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,6 +19,7 @@
 
 package io.github.dsheirer.source.tuner.manager;
 
+import io.github.dsheirer.gui.preference.tuner.RspDuoSelectionMode;
 import io.github.dsheirer.preference.UserPreferences;
 import io.github.dsheirer.preference.source.ChannelizerType;
 import io.github.dsheirer.source.Source;
@@ -28,6 +29,7 @@ import io.github.dsheirer.source.config.SourceConfigTunerMultipleFrequency;
 import io.github.dsheirer.source.config.SourceConfiguration;
 import io.github.dsheirer.source.mixer.MixerManager;
 import io.github.dsheirer.source.tuner.TunerClass;
+import io.github.dsheirer.source.tuner.TunerFactory;
 import io.github.dsheirer.source.tuner.TunerType;
 import io.github.dsheirer.source.tuner.channel.ChannelSpecification;
 import io.github.dsheirer.source.tuner.channel.MultiFrequencyTunerChannelSource;
@@ -36,6 +38,11 @@ import io.github.dsheirer.source.tuner.channel.TunerChannelSource;
 import io.github.dsheirer.source.tuner.configuration.TunerConfiguration;
 import io.github.dsheirer.source.tuner.configuration.TunerConfigurationManager;
 import io.github.dsheirer.source.tuner.recording.RecordingTunerConfiguration;
+import io.github.dsheirer.source.tuner.sdrplay.DiscoveredRspTuner;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.DeviceInfo;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.DiscoveredRspDuoTuner1;
 import io.github.dsheirer.source.tuner.ui.DiscoveredTunerModel;
 import io.github.dsheirer.util.ThreadPool;
 import java.nio.ByteBuffer;
@@ -63,14 +70,13 @@ import org.usb4java.LibUsb;
 public class TunerManager implements IDiscoveredTunerStatusListener
 {
     private static final Logger mLog = LoggerFactory.getLogger(TunerManager.class);
-    private static final int MAXIMUM_USB_2_DATA_RATE = 480000000;
-
     private UserPreferences mUserPreferences;
     private DiscoveredTunerModel mDiscoveredTunerModel = new DiscoveredTunerModel();
     private TunerConfigurationManager mTunerConfigurationManager;
     private HotplugEventSupport mHotplugEventSupport = new HotplugEventSupport();
     private Context mLibUsbApplicationContext = new Context();
     private boolean mLibUsbInitialized = false;
+    private SDRplay mSDRplay;
 
     /**
      * Constructs an instance
@@ -142,6 +148,13 @@ public class TunerManager implements IDiscoveredTunerStatusListener
         //Stop all tuners
         mDiscoveredTunerModel.releaseDiscoveredTuners();
 
+        //Shutdown SDRplay API instance
+        if(mSDRplay != null)
+        {
+            mSDRplay.close();
+            mSDRplay = null;
+        }
+
         //Shutdown LibUsb
         if(mLibUsbInitialized)
         {
@@ -238,37 +251,7 @@ public class TunerManager implements IDiscoveredTunerStatusListener
     {
         if(!mDiscoveredTunerModel.hasUsbTuner(discoveredUSBTuner.getBus(), discoveredUSBTuner.getPortAddress()))
         {
-            discoveredUSBTuner.addTunerStatusListener(this);
-
-            //Set the tuner to disabled if the user has previously blacklisted the tuner
-            if(mTunerConfigurationManager.isDisabled(discoveredUSBTuner))
-            {
-                discoveredUSBTuner.setEnabled(false);
-                mLog.info("Tuner: " + discoveredUSBTuner + " - Added / Disabled");
-            }
-            else
-            {
-                mLog.info("Tuner: " + discoveredUSBTuner + " - Added / Starting ...");
-                //Attempt to start the discovered tuner and determine the tuner type
-                discoveredUSBTuner.start();
-
-                if(discoveredUSBTuner.hasTuner())
-                {
-                    TunerType tunerType = discoveredUSBTuner.getTuner().getTunerType();
-
-                    TunerConfiguration tunerConfiguration = mTunerConfigurationManager
-                            .getTunerConfiguration(tunerType, discoveredUSBTuner.getId());
-
-                    if(tunerConfiguration != null)
-                    {
-                        mLog.info("Tuner: " + discoveredUSBTuner + " - Applying Tuner Configuration");
-                        discoveredUSBTuner.setTunerConfiguration(tunerConfiguration);
-                        mTunerConfigurationManager.saveConfigurations();
-                    }
-                }
-            }
-
-            mDiscoveredTunerModel.addDiscoveredTuner(discoveredUSBTuner);
+            startAndConfigureTuner(discoveredUSBTuner);
         }
     }
 
@@ -282,12 +265,77 @@ public class TunerManager implements IDiscoveredTunerStatusListener
         return mDiscoveredTunerModel.removeUsbTuner(bus, portAddress);
     }
 
+    /**
+     * Starts, configures and adds the tuner to the tuner model.
+     * @param discoveredTuner to add and configure
+     */
+    private void startAndConfigureTuner(DiscoveredTuner discoveredTuner)
+    {
+        discoveredTuner.addTunerStatusListener(this);
+
+        //Set the tuner to disabled if the user has previously blacklisted the tuner
+        if(mTunerConfigurationManager.isDisabled(discoveredTuner))
+        {
+            discoveredTuner.setEnabled(false);
+            mLog.info("Tuner: " + discoveredTuner + " - Added / Disabled");
+        }
+        else
+        {
+            mLog.info("Tuner: " + discoveredTuner + " - Added / Starting ...");
+            //Attempt to start the discovered tuner and determine the tuner type
+            tunerStatusUpdated(discoveredTuner, TunerStatus.DISABLED, TunerStatus.ENABLED);
+        }
+
+        mDiscoveredTunerModel.addDiscoveredTuner(discoveredTuner);
+    }
+
     /**
      * Discover SDRPlay RSP tuners
      */
     private void discoverSdrPlayTuners()
     {
-        //placeholder ...
+        ChannelizerType channelizerType = mUserPreferences.getTunerPreference().getChannelizerType();
+        RspDuoSelectionMode duoSelectionMode = mUserPreferences.getTunerPreference().getRspDuoTunerMode();
+
+        //Note: we have to keep this first API instance open while we use any RSP tuners, otherwise the additional API
+        //instance(s) used by the individual tuners become unresponsive.  Note sure why.
+        mSDRplay = new SDRplay();
+
+        if(mSDRplay.isAvailable())
+        {
+            try
+            {
+                List<DeviceInfo> deviceInfos = mSDRplay.getDeviceInfos();
+
+                mLog.info("Discovered [" + deviceInfos.size() + "] RSP devices from SDRplay API");
+
+                if(deviceInfos.isEmpty())
+                {
+                    mSDRplay.close();
+                    mSDRplay = null;
+                    return;
+                }
+
+                for(DeviceInfo deviceInfo: deviceInfos)
+                {
+                    List<DiscoveredRspTuner> tuners = TunerFactory.getRspTuners(deviceInfo, channelizerType, duoSelectionMode);
+
+                    for(DiscoveredRspTuner tuner: tuners)
+                    {
+                        startAndConfigureTuner(tuner);
+                    }
+                }
+            }
+            catch(SDRPlayException se)
+            {
+                mLog.info("Unable to get list of devices from SDRplay API");
+            }
+        }
+        else
+        {
+            mSDRplay.close();
+            mSDRplay = null;
+        }
     }
 
     /**
@@ -329,29 +377,43 @@ public class TunerManager implements IDiscoveredTunerStatusListener
     @Override
     public void tunerStatusUpdated(DiscoveredTuner discoveredTuner, TunerStatus previous, TunerStatus current)
     {
-        mTunerConfigurationManager.tunerStatusUpdated(discoveredTuner, previous, current);
-
-        if(previous != TunerStatus.ENABLED && current == TunerStatus.ENABLED)
+        if(current == TunerStatus.ENABLED)
         {
             discoveredTuner.start();
+        }
 
-            if(discoveredTuner.hasTuner())
+        //Special handling for RSPduo to auto-update enabled state for slave device when configured for master/slave operation
+        if(discoveredTuner instanceof DiscoveredRspDuoTuner1 rspDuoTuner1 && rspDuoTuner1.getDeviceInfo().getDeviceSelectionMode().isMasterMode())
+        {
+            String id = rspDuoTuner1.getId();
+            id = id.replace(DiscoveredRspDuoTuner1.RSP_DUO_ID_PREFIX + "1", DiscoveredRspDuoTuner1.RSP_DUO_ID_PREFIX + "2");
+            DiscoveredTuner rspDuoTuner2 = getDiscoveredTunerModel().getDiscoveredTuner(id);
+
+            if(rspDuoTuner2 != null)
             {
-                TunerType tunerType = discoveredTuner.getTuner().getTunerType();
-
-                //Don't fetch or create a configuration for recording tuners
-                if(tunerType != TunerType.RECORDING)
+                if(previous == TunerStatus.ENABLED && current == TunerStatus.DISABLED)
                 {
-                    TunerConfiguration tunerConfiguration = mTunerConfigurationManager
-                            .getTunerConfiguration(tunerType, discoveredTuner.getId());
-
-                    if(tunerConfiguration != null)
-                    {
-                        discoveredTuner.setTunerConfiguration(tunerConfiguration);
-                        mTunerConfigurationManager.saveConfigurations();
-                    }
+                    rspDuoTuner2.setEnabled(false);
+                }
+                else if(previous == TunerStatus.DISABLED && current == TunerStatus.ENABLED)
+                {
+                    rspDuoTuner2.setEnabled(true);
+                    rspDuoTuner2.start();
                 }
             }
+
+            //Notify tuner configuration manager to apply tuner configurations & update disabled tuner states
+            mTunerConfigurationManager.tunerStatusUpdated(rspDuoTuner1, previous, current);
+
+            if(rspDuoTuner2 != null)
+            {
+                mTunerConfigurationManager.tunerStatusUpdated(rspDuoTuner2, previous, current);
+            }
+        }
+        else
+        {
+            //Notify tuner configuration manager to apply tuner configuration
+            mTunerConfigurationManager.tunerStatusUpdated(discoveredTuner, previous, current);
         }
     }
 

src/main/java/io/github/dsheirer/source/tuner/manager/TunerStatus.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -34,6 +34,12 @@ public enum TunerStatus
      */
     DISABLED("Disabled"),
 
+
+    /**
+     * Indicates that the tuner has been removed from the system.
+      */
+    REMOVED("Removed"),
+
     /**
      * A tuner that has an error state and is unusable
      */

src/main/java/io/github/dsheirer/source/tuner/sdrplay/ControlRsp.java

@@ -0,0 +1,371 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.DeviceSelectionMode;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.Status;
+import io.github.dsheirer.source.tuner.sdrplay.api.UpdateReason;
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.IDeviceEventListener;
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.IStreamListener;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.Device;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.TunerSelect;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.control.AgcMode;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.GainReduction;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.IfMode;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.LoMode;
+import java.util.concurrent.locks.ReentrantLock;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Base RSP control implementation
+ */
+public abstract class ControlRsp<T extends Device> implements IControlRsp
+{
+    private static final Logger mLog = LoggerFactory.getLogger(ControlRsp.class);
+    private T mDevice;
+    protected RspSampleRate mSampleRate = RspSampleRate.RATE_8_000;
+    protected int mGain;
+    private IDeviceEventListener mDeviceEventListener;
+    private IStreamListener mStreamListener;
+
+    //Streaming control lock and boolean status indicator.  Access to the boolean indicator is protected by the lock.
+    protected ReentrantLock mStreamingLock = new ReentrantLock();
+    protected boolean mStreaming = false;
+
+    /**
+     * Constructs an instance
+     * @param device for the device, obtained from the API
+     */
+    public ControlRsp(T device)
+    {
+        mDevice = device;
+    }
+
+    @Override
+    public TunerSelect getTunerSelect()
+    {
+        return TunerSelect.TUNER_1;
+    }
+
+    @Override
+    public void start() throws SDRPlayException
+    {
+        if(hasDevice())
+        {
+            getDevice().select();
+
+            //Enable automatic DC and I/Q correction
+            getDevice().getCompositeParameters().getControlAParameters().getDcOffset().setDC(true);
+            getDevice().getCompositeParameters().getControlAParameters().getDcOffset().setIQ(true);
+
+            //Setup IF, LO, and AGC Mode
+            getDevice().getCompositeParameters().getControlAParameters().getAgc().setAgcMode(AgcMode.DISABLE);
+            getDevice().setIfMode(IfMode.IF_ZERO);
+            getDevice().setLoMode(LoMode.AUTO);
+        }
+        else
+        {
+            throw new SDRPlayException("Unable to start - device is null");
+        }
+    }
+
+    @Override
+    public void stop() throws SDRPlayException
+    {
+        if(hasDevice())
+        {
+            stopStream();
+            getDevice().release();
+            clearDevice();
+        }
+    }
+
+    @Override
+    public void startStream()
+    {
+        mStreamingLock.lock();
+
+        try
+        {
+            if(hasDevice())
+            {
+                if(!mStreaming)
+                {
+                    getDevice().initStreamA(getDeviceEventListener(), getStreamListener());
+                    mStreaming = true;
+                }
+            }
+            else
+            {
+                mLog.error("Unable to start RSP device sample stream - device not started");
+            }
+        }
+        catch(SDRPlayException se)
+        {
+            if(se.getStatus() == Status.FAIL)
+            {
+                mLog.error("Unable to start RSP streaming - device may have been unplugged - removing.");
+                if(mDeviceEventListener != null)
+                {
+                    mDeviceEventListener.processDeviceRemoval(getTunerSelect());
+                }
+            }
+            else
+            {
+                mLog.error("Unable to initialize/start streaming for RSP device", se);
+            }
+        }
+        finally
+        {
+            mStreamingLock.unlock();
+        }
+    }
+
+    @Override
+    public void stopStream()
+    {
+        mStreamingLock.lock();
+
+        try
+        {
+            if(hasDevice() && mStreaming)
+            {
+                getDevice().uninitialize();
+            }
+        }
+        catch(SDRPlayException se)
+        {
+            mLog.error("Unable to uninitialize/stop streaming for RSP device");
+        }
+        finally
+        {
+            mStreaming = false;
+            mStreamingLock.unlock();
+        }
+    }
+
+    @Override
+    public DeviceSelectionMode getDeviceSelectionMode()
+    {
+        //Default device selection mode for all tuners except the RSPduo
+        return DeviceSelectionMode.SINGLE_TUNER_1;
+    }
+
+    /**
+     * Device descriptor for this device
+     */
+    public T getDevice()
+    {
+        return mDevice;
+    }
+
+    /**
+     * RSP device was unplugged from USB bus.  Clear the device and do not attempt any further interaction with the
+     * device via the API.
+     */
+    @Override
+    public void deviceRemoved()
+    {
+        clearDevice();
+
+        mStreamingLock.lock();
+
+        try
+        {
+            mStreaming = false;
+        }
+        finally
+        {
+            mStreamingLock.unlock();
+        }
+    }
+
+    /**
+     * Clears/nullifies the device.  This should be invoked after stopping the device to prevent reuse.
+     */
+    public void clearDevice()
+    {
+        mDevice = null;
+    }
+
+    /**
+     * Indicates if this control has a non-null device.
+     * @return true if non-null device.
+     */
+    public boolean hasDevice()
+    {
+        return getDevice() != null;
+    }
+
+    /**
+     * Sets the sample rate
+     * @param sampleRate enumeration value.
+     * @throws SDRPlayException
+     */
+    @Override
+    public void setSampleRate(RspSampleRate sampleRate) throws SDRPlayException
+    {
+        if(hasDevice())
+        {
+            mSampleRate = sampleRate;
+            getDevice().getTuner().setBandwidth(sampleRate.getBandwidth());
+            getDevice().getCompositeParameters().getDeviceParameters().getSamplingFrequency()
+                    .setSampleRate(sampleRate.getSampleRate());
+            getDevice().update(getTunerSelect(), UpdateReason.DEVICE_SAMPLE_RATE);
+            getDevice().getCompositeParameters().getControlAParameters().getDecimation().setWideBandSignal(true);
+            getDevice().setDecimation(sampleRate.getDecimation());
+        }
+        else
+        {
+            throw new SDRPlayException("RSP tuner has not been started - can't apply sample rate");
+        }
+    }
+
+    /**
+     * Sets the gain index
+     * @param gain index value (0 - 28)
+     * @throws SDRPlayException
+     */
+    @Override
+    public void setGain(int gain) throws SDRPlayException
+    {
+        validateGain(gain);
+
+        if(gain != mGain)
+        {
+            mGain = gain;
+            getDevice().getTuner().setGain(mGain);
+        }
+    }
+
+
+    @Override
+    public void acknowledgePowerOverload(TunerSelect tunerSelect) throws SDRPlayException
+    {
+        if(hasDevice())
+        {
+            getDevice().acknowledgePowerOverload(tunerSelect);
+        }
+        else
+        {
+            throw new SDRPlayException("Device is not initialized");
+        }
+    }
+
+    @Override
+    public long getTunedFrequency() throws SDRPlayException
+    {
+        if(hasDevice())
+        {
+            return getDevice().getTuner().getFrequency();
+        }
+        else
+        {
+            throw new SDRPlayException("Device is not initialized");
+        }
+    }
+
+    @Override
+    public void setTunedFrequency(long frequency) throws SDRPlayException
+    {
+        if(hasDevice())
+        {
+            getDevice().getTuner().setFrequency(frequency);
+        }
+        else
+        {
+            throw new SDRPlayException("Device is not initialized");
+        }
+    }
+
+    /**
+     * Current sample rate setting
+     */
+    @Override
+    public RspSampleRate getSampleRateEnumeration()
+    {
+        return mSampleRate;
+    }
+
+    /**
+     * Current sample rate
+     */
+    @Override
+    public double getCurrentSampleRate()
+    {
+        return getSampleRateEnumeration().getEffectiveSampleRate();
+    }
+
+    /**
+     * Current gain index
+     * @return gain index
+     */
+    @Override
+    public int getGain()
+    {
+        return mGain;
+    }
+
+    /**
+     * Verifies that the requested gain index setting is within the range of valid gain values.
+     * @param gain to validate
+     * @throws SDRPlayException if the gain index value is outside the range of valid values.
+     */
+    protected void validateGain(int gain) throws SDRPlayException
+    {
+        if(gain < GainReduction.MIN_GAIN_INDEX || gain > GainReduction.MAX_GAIN_INDEX)
+        {
+            throw new SDRPlayException("Invalid gain index value [" + gain + "].  Valid range is " +
+                    GainReduction.MIN_GAIN_INDEX + " - " + GainReduction.MAX_GAIN_INDEX);
+        }
+    }
+
+    /**
+     * Registers listeners to receive device events and sample streams.
+     * @param deviceEventListener to receive device events
+     * @param streamListener to receive sample stream and related parameters.
+     */
+    @Override
+    public void resister(IDeviceEventListener deviceEventListener, IStreamListener streamListener)
+    {
+        mDeviceEventListener = deviceEventListener;
+        mStreamListener = streamListener;
+    }
+
+    /**
+     * Registered device event listener
+     * @return device event listener or null if a listener has not been registered.
+     */
+    protected IDeviceEventListener getDeviceEventListener()
+    {
+        return mDeviceEventListener;
+    }
+
+    /**
+     * Registered stream listener
+     * @return stream listener or null if a listener has not been registered.
+     */
+    protected IStreamListener getStreamListener()
+    {
+        return mStreamListener;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/DiscoveredRspTuner.java

@@ -0,0 +1,122 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay;
+
+import io.github.dsheirer.preference.source.ChannelizerType;
+import io.github.dsheirer.source.tuner.TunerClass;
+import io.github.dsheirer.source.tuner.TunerFactory;
+import io.github.dsheirer.source.tuner.manager.DiscoveredTuner;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.DeviceInfo;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.DeviceType;
+
+/**
+ * Discovered SDRplay RSP tuner
+ */
+public abstract class DiscoveredRspTuner<R extends IControlRsp> extends DiscoveredTuner
+{
+    private final DeviceInfo mDeviceInfo;
+    private final ChannelizerType mChannelizerType;
+
+    /**
+     * Constructs an instance
+     * @param deviceInfo to select the device from the API
+     */
+    public DiscoveredRspTuner(DeviceInfo deviceInfo, ChannelizerType channelizerType)
+    {
+        mDeviceInfo = deviceInfo;
+        mChannelizerType = channelizerType;
+    }
+
+    /**
+     * Information about the discovered RSP device
+     * @return device info
+     */
+    public DeviceInfo getDeviceInfo()
+    {
+        return mDeviceInfo;
+    }
+
+    /**
+     * Channelizer type to use for the tuner
+     */
+    protected ChannelizerType getChannelizerType()
+    {
+        return mChannelizerType;
+    }
+
+    @Override
+    public TunerClass getTunerClass()
+    {
+        return TunerClass.RSP;
+    }
+
+    /**
+     * Type of RSP tuner device
+     */
+    public DeviceType getDeviceType()
+    {
+        return mDeviceInfo.getDeviceType();
+    }
+
+    /**
+     * Constructs and starts the tuner
+     */
+    @Override
+    public void start()
+    {
+        if(isAvailable() && !hasTuner())
+        {
+            try
+            {
+                mTuner = TunerFactory.getRspTuner(getDeviceInfo(), getChannelizerType(), this);
+            }
+            catch(Exception se)
+            {
+                setErrorMessage("Tuner unavailable [" + getId() + "]");
+                mTuner = null;
+            }
+
+            if(hasTuner())
+            {
+                try
+                {
+                    mTuner.start();
+                }
+                catch(Exception se)
+                {
+                    setErrorMessage("Error starting tuner [" + getId() + "]");
+                    mTuner = null;
+                }
+            }
+        }
+    }
+
+    @Override
+    public String getId()
+    {
+        return getDeviceType().name() + " SER#" + getDeviceInfo().getSerialNumber();
+    }
+
+    @Override
+    public String toString()
+    {
+        return getId();
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/IControlRsp.java

@@ -0,0 +1,128 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.DeviceSelectionMode;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.IDeviceEventListener;
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.IStreamListener;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.Device;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.TunerSelect;
+
+/**
+ * Control interface for base RSP device
+ */
+public interface IControlRsp
+{
+    DeviceSelectionMode getDeviceSelectionMode();
+
+    /**
+     * Device descriptor for this RSP
+     * @return device descriptor
+     */
+    Device getDevice();
+
+    /**
+     * Process an RSP device removal.  Device memory resources should be nullified and the software should not attempt
+     * any further interaction with the device via the API.
+     */
+    void deviceRemoved();
+
+    /**
+     * Selected tuner for this RSP.
+     * @return selected tuner.
+     */
+    TunerSelect getTunerSelect();
+
+    /**
+     * Starts the device
+     */
+    void start() throws SDRPlayException;
+
+    /**
+     * Stops the device
+     */
+    void stop() throws SDRPlayException;
+
+    /**
+     * Registers listeners to receive device events and streaming samples when startStream() is invoked.
+     * @param deviceEventListener to receive device events
+     * @param streamListener to receive sample stream and related parameters.
+     */
+    void resister(IDeviceEventListener deviceEventListener, IStreamListener streamListener);
+
+    /**
+     * Starts the sample stream and delivers the samples to the registered listener.
+     */
+    void startStream();
+
+    /**
+     * Stops the sample stream.
+     */
+    void stopStream();
+
+    /**
+     * Callback to acknowledge a power overload event.
+     * @param tunerSelect identifies the tuner where the power overload is happening.
+     */
+    void acknowledgePowerOverload(TunerSelect tunerSelect) throws SDRPlayException;
+
+    /**
+     * Current center tune frequency
+     * @return frequency in Hertz
+     */
+    long getTunedFrequency() throws SDRPlayException;
+
+    /**
+     * Sets the center tune frequency
+     * @param frequency in Hertz
+     */
+    void setTunedFrequency(long frequency) throws SDRPlayException;
+
+    /**
+     * Current sample rate enumeration value
+     * @return sample rate enumeration.
+     */
+    RspSampleRate getSampleRateEnumeration();
+
+    /**
+     * Sets the sample rate.
+     * @param rspSampleRate enumeration value.
+     */
+    void setSampleRate(RspSampleRate rspSampleRate) throws SDRPlayException;
+
+    /**
+     * Current sample rate value.
+     * @return sample rate in Hertz
+     */
+    double getCurrentSampleRate();
+
+    /**
+     * Sets the gain index value.
+     * @param gain index value (0 - 28)
+     */
+    void setGain(int gain) throws SDRPlayException;
+
+    /**
+     * Current gain index value
+     * @return gain index value (0 - 28)
+     */
+    int getGain();
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/RspNativeBuffer.java

@@ -0,0 +1,141 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2022 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay;
+
+import io.github.dsheirer.buffer.AbstractNativeBuffer;
+import io.github.dsheirer.sample.complex.ComplexSamples;
+import io.github.dsheirer.sample.complex.InterleavedComplexSamples;
+import java.util.Iterator;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Native buffer implementation for RSP tuner I/Q sample buffers.
+ *
+ * Note: in testing with API v3.07, the daemon returns 2016 samples in each of the I and Q arrays.
+ */
+public class RspNativeBuffer extends AbstractNativeBuffer
+{
+    private static final Logger mLog = LoggerFactory.getLogger(RspNativeBuffer.class);
+    private static final float SAMPLE_TO_FLOAT = 1.0f / 32768.0f;
+    private short[] mISamples;
+    private short[] mQSamples;
+
+    /**
+     * Constructs an instance
+     * @param i samples array
+     * @param q samples array
+     * @param timestamp for the first sample
+     * @param samplesPerMillisecond used to calculate sub-buffer fragment timestamp offsets from the start of this buffer.
+     */
+    public RspNativeBuffer(short[] i, short[] q, long timestamp, float samplesPerMillisecond)
+    {
+        super(timestamp, samplesPerMillisecond);
+        mISamples = i;
+        mQSamples = q;
+    }
+
+    /**
+     * Iterator over samples that produces complex sample buffers.
+     */
+    @Override
+    public Iterator<ComplexSamples> iterator()
+    {
+        return new SampleIterator();
+    }
+
+    /**
+     * Iterator over samples that produces interleaved complex sample buffers
+     */
+    @Override
+    public Iterator<InterleavedComplexSamples> iteratorInterleaved()
+    {
+        return new InterleavedSampleIterator();
+    }
+
+    @Override
+    public int sampleCount()
+    {
+        return mISamples.length * 2;
+    }
+
+    /**
+     * Iterator providing (non-interleaved) complex sample buffers
+     */
+    private class SampleIterator implements Iterator<ComplexSamples>
+    {
+        private int mSamplePointer;
+
+        @Override
+        public boolean hasNext()
+        {
+            return mSamplePointer < mISamples.length;
+        }
+
+        @Override
+        public ComplexSamples next()
+        {
+            float[] i = new float[mISamples.length];
+            float[] q = new float[mISamples.length];
+
+            for(int x = 0; x < mISamples.length; x++)
+            {
+                i[x] = mISamples[x] * SAMPLE_TO_FLOAT;
+                q[x] = mQSamples[x] * SAMPLE_TO_FLOAT;
+            }
+
+            mSamplePointer += mISamples.length;
+
+            return new ComplexSamples(i, q, getTimestamp());
+        }
+    }
+
+    /**
+     * Interator providing interleaved sample buffers.
+     */
+    private class InterleavedSampleIterator implements Iterator<InterleavedComplexSamples>
+    {
+        private int mSamplePointer;
+
+        @Override
+        public boolean hasNext()
+        {
+            return mSamplePointer < mISamples.length;
+        }
+
+        @Override
+        public InterleavedComplexSamples next()
+        {
+            float[] samples = new float[mISamples.length * 2];
+
+            int index = 0;
+
+            for(int x = 0; x < mISamples.length; x++)
+            {
+                samples[index++] = mISamples[x] * SAMPLE_TO_FLOAT;
+                samples[index++] = mQSamples[x] * SAMPLE_TO_FLOAT;
+            }
+
+            mSamplePointer += mISamples.length;
+
+            return new InterleavedComplexSamples(samples, getTimestamp());
+        }
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/RspSampleRate.java

@@ -0,0 +1,184 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.device.Decimate;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.Bandwidth;
+import java.util.EnumSet;
+
+/**
+ * RSP device Sample Rate, Bandwidth and Decimation enumeration
+ *
+ * Note: final effective sample rate must be greater than IF bandwidth setting to avoid aliasing.  The available IF
+ * bandwidth values effectively dictate the available sample rates
+ */
+public enum RspSampleRate
+{
+    RATE_0_250(8_000_000, 016_000, Bandwidth.BW_0_300, Decimate.X32, "0.250 MHz (0.234 usable)"),
+    RATE_0_500(8_000_000, 024_000, Bandwidth.BW_0_600, Decimate.X16, "0.500 MHz (0.476 usable)"),
+    RATE_1_000(8_000_000, 100_000, Bandwidth.BW_1_536, Decimate.X8, "1.000 MHz (0.900 usable)"),
+    RATE_1_500(6_000_000, 140_000, Bandwidth.BW_1_536, Decimate.X4, "1.500 MHz (1.360 usable)"),
+    RATE_3_000(6_000_000, 300_000, Bandwidth.BW_5_000, Decimate.X2, "3.000 MHz (2.700 usable)"),
+    RATE_4_000(8_000_000, 340_000, Bandwidth.BW_5_000, Decimate.X2, "4.000 MHz (3.560 usable)"),
+    RATE_5_000(5_000_000, 880_000, Bandwidth.BW_5_000, Decimate.X1, "5.000 MHz (4.120 usable)"),
+    RATE_6_000(6_000_000, 800_000, Bandwidth.BW_6_000, Decimate.X1, "6.000 MHz (5.200 usable)"),
+    RATE_7_000(7_000_000, 1_040_000, Bandwidth.BW_7_000, Decimate.X1, "7.000 MHz (5.960 usable)"),
+    RATE_8_000(8_000_000, 1_060_000, Bandwidth.BW_8_000, Decimate.X1, "8.000 MHz (6.940 usable)"),
+    RATE_9_000(9_000_000, 1_620_000, Bandwidth.BW_8_000, Decimate.X1, "9.000 MHz (7.380 usable)"),
+    RATE_10_000(10_000_000, 1_500_000, Bandwidth.BW_8_000, Decimate.X1, "10.000 MHz (8.500 usable)"),
+
+    /**
+     * Note: in dual tuner mode, available sample rates are 6 or 8 MHz with an effective output rate of
+     * 2 MHz.  Decimation is applied against the final 2 MHz rate, not the original 6/8 sampling rate.
+     */
+    DUO_RATE_0_500(8_000_000, 50_000, Bandwidth.BW_8_000, Decimate.X4, "0.500 MHz (0.450 usable)"),
+    DUO_RATE_1_000(8_000_000, 50_000, Bandwidth.BW_8_000, Decimate.X2, "1.000 MHz (0.950 usable)"),
+    DUO_RATE_1_500(6_000_000, 0, Bandwidth.BW_6_000, Decimate.X1, "1.500 MHz (1.500 usable)"),
+    DUO_RATE_2_000(8_000_000, 0, Bandwidth.BW_8_000, Decimate.X1, "2.000 MHz (2.000 usable)"),
+
+    UNDEFINED(0, 0, Bandwidth.UNDEFINED, Decimate.X1, "UNDEFINED");
+
+    private long mSampleRate;
+    private long mUnusable;
+    private Bandwidth mBandwidth;
+    private Decimate mDecimation;
+    private String mDescription;
+
+    /**
+     * Constructs an instance
+     * @param sampleRate in hertz
+     * @param unusable bandwidth (total) in Hertz due to IF or decimation filter roll-off at spectrum edges
+     * @param bandwidth of the frequency spectrum
+     * @param decimation to be applied to the original sample rate to achieve the effective sample rate
+     * @param description for UI display
+     */
+    RspSampleRate(long sampleRate, long unusable, Bandwidth bandwidth, Decimate decimation, String description)
+    {
+        mSampleRate = sampleRate;
+        mUnusable = unusable;
+        mBandwidth = bandwidth;
+        mDecimation = decimation;
+        mDescription = description;
+    }
+
+    /**
+     * Single tuner sample rates for all devices operating in single tuner mode
+     */
+    public static EnumSet<RspSampleRate> SINGLE_TUNER_SAMPLE_RATES = EnumSet.range(RATE_0_250, RATE_10_000);
+
+    /**
+     * RSPduo dual-tuner mode sample rates
+     */
+    public static EnumSet<RspSampleRate> DUAL_TUNER_SAMPLE_RATES = EnumSet.range(DUO_RATE_0_500, DUO_RATE_2_000);
+
+    /**
+     * Sample Rate
+     * @return sample rate (Hz)
+     */
+    public long getSampleRate()
+    {
+        return mSampleRate;
+    }
+
+    /**
+     * Usable bandwidth in range 0.0 to 1.0, where 1.0 is 100% usable bandwidth
+     */
+    public double getUsableBandwidth()
+    {
+        if(getSampleRate() != 0)
+        {
+            return 1.0 - ((double)mUnusable / (double)getEffectiveSampleRate());
+        }
+
+        return 0.0;
+    }
+
+    /**
+     * Indicates if this is a sample rate supported by the RSPduo operating in dual-tuner mode.
+     * @return true if this is a dual-tuner sample rate.
+     */
+    public boolean isDualTunerSampleRate()
+    {
+        return DUAL_TUNER_SAMPLE_RATES.contains(this);
+    }
+
+    /**
+     * Sample size in bits.  Can be used to adjust spectral display for effective dynamic range.
+     * @return sample size in bits.
+     */
+    public int getSampleSize()
+    {
+        return mDecimation.getSampleSize();
+    }
+
+    /**
+     * Decimation rate to be applied against sample rate.
+     * @return decimation value
+     */
+    public Decimate getDecimation()
+    {
+        return mDecimation;
+    }
+
+    /**
+     * Indicates if this sample rate specifies decimation
+     */
+    public boolean hasDecimation()
+    {
+        return getDecimation().isEnabled();
+    }
+
+    /**
+     * Effective Sample Rate (sample rate / decimation).  Note: for RSPduo operating in dual-tuner mode, an
+     * inherent x4 decimation is applied in the hardware.
+     * @return effective sample rate (Hz)
+     */
+    public long getEffectiveSampleRate()
+    {
+        if(isDualTunerSampleRate())
+        {
+            //Dual tuner sample rate is specified at 8 MHz, but there is an inherent x4 decimation to 2 MHz
+            //on top of the user specified decimation rate.
+            return getSampleRate() / getDecimation().getValue() / 4;
+        }
+        else
+        {
+            return getSampleRate() / getDecimation().getValue();
+        }
+    }
+
+    /**
+     * Bandwidth entry
+     */
+    public Bandwidth getBandwidth()
+    {
+        return mBandwidth;
+    }
+
+    /**
+     * Overrides the default string representation to use the UI description/label.
+     * @return string representation of the entry
+     */
+    @Override
+    public String toString()
+    {
+        return mDescription;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/RspTuner.java

@@ -0,0 +1,104 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay;
+
+import io.github.dsheirer.preference.source.ChannelizerType;
+import io.github.dsheirer.source.tuner.ITunerErrorListener;
+import io.github.dsheirer.source.tuner.Tuner;
+import io.github.dsheirer.source.tuner.TunerClass;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.IControlRspDuoTuner1;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.IControlRspDuoTuner2;
+
+/**
+ * Generic RSP tuner with a device specific tuner controller implementation.
+ */
+public class RspTuner extends Tuner
+{
+    /**
+     * Constructs an instance
+     * @param tunerController for controlling the tuner
+     * @param tunerErrorListener to process errors from this tuner
+     * @param channelizerType to use with this tuner
+     */
+    public RspTuner(RspTunerController tunerController, ITunerErrorListener tunerErrorListener, ChannelizerType channelizerType)
+    {
+        super(tunerController, tunerErrorListener, channelizerType);
+    }
+
+    @Override
+    public int getMaximumUSBBitsPerSecond()
+    {
+        //12-bits per sample, 2 samples per frame, 10 MHz sample rate
+        return 320_000_000;
+    }
+
+    @Override
+    public String getUniqueID()
+    {
+        return getRspTunerController().getControlRsp().getDevice().getSerialNumber();
+    }
+
+    @Override
+    public TunerClass getTunerClass()
+    {
+        return TunerClass.RSP;
+    }
+
+    /**
+     * RSP Tuner controller for this tuner
+     */
+    public RspTunerController getRspTunerController()
+    {
+        return (RspTunerController)getTunerController();
+    }
+
+    @Override
+    public String getPreferredName()
+    {
+        if(getRspTunerController().getControlRsp() instanceof IControlRspDuoTuner1 &&
+            getRspTunerController().getControlRsp().getDevice() != null)
+        {
+            return getRspTunerController().getControlRsp().getDevice().getDeviceType() +
+                " SER:" + getRspTunerController().getControlRsp().getDevice().getSerialNumber() + " Tuner 1";
+        }
+        else if(getRspTunerController().getControlRsp() instanceof IControlRspDuoTuner2 &&
+                getRspTunerController().getControlRsp().getDevice() != null)
+        {
+            return getRspTunerController().getControlRsp().getDevice().getDeviceType() +
+                " SER:" + getRspTunerController().getControlRsp().getDevice().getSerialNumber() + " Tuner 2";
+        }
+        else if(getRspTunerController().getControlRsp() instanceof IControlRsp &&
+                getRspTunerController().getControlRsp().getDevice() != null)
+        {
+            return getRspTunerController().getControlRsp().getDevice().getDeviceType() +
+                    " SER:" + getRspTunerController().getControlRsp().getDevice().getSerialNumber();
+        }
+        else
+        {
+            return "RSP Tuner - Device Not Available";
+        }
+    }
+
+    @Override
+    public double getSampleSize()
+    {
+        return getRspTunerController().getControlRsp().getSampleRateEnumeration().getSampleSize();
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/RspTunerConfiguration.java

@@ -0,0 +1,106 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay;
+
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty;
+import io.github.dsheirer.source.tuner.configuration.TunerConfiguration;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.GainReduction;
+import io.github.dsheirer.source.tuner.sdrplay.rsp1a.Rsp1aTunerConfiguration;
+import io.github.dsheirer.source.tuner.sdrplay.rsp2.Rsp2TunerConfiguration;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.RspDuoTuner1Configuration;
+import io.github.dsheirer.source.tuner.sdrplay.rspDuo.RspDuoTuner2Configuration;
+import io.github.dsheirer.source.tuner.sdrplay.rspDx.RspDxTunerConfiguration;
+
+/**
+ * Abstract RSP tuner configuration
+ */
+@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "type")
+@JsonSubTypes({
+        @JsonSubTypes.Type(value = Rsp1aTunerConfiguration.class, name = "rsp1aTunerConfiguration"),
+        @JsonSubTypes.Type(value = Rsp2TunerConfiguration.class, name = "rsp2TunerConfiguration"),
+        @JsonSubTypes.Type(value = RspDuoTuner1Configuration.class, name = "rspDuoTuner1Configuration"),
+        @JsonSubTypes.Type(value = RspDuoTuner2Configuration.class, name = "rspDuoTuner2Configuration"),
+        @JsonSubTypes.Type(value = RspDxTunerConfiguration.class, name = "rspDxTunerConfiguration"),
+})
+public abstract class RspTunerConfiguration extends TunerConfiguration
+{
+    public static final RspSampleRate DEFAULT_SINGLE_TUNER_SAMPLE_RATE = RspSampleRate.RATE_8_000;
+    public static final RspSampleRate DEFAULT_DUAL_TUNER_SAMPLE_RATE = RspSampleRate.DUO_RATE_2_000;
+
+    private RspSampleRate mRspSampleRate = DEFAULT_SINGLE_TUNER_SAMPLE_RATE;
+    private int mGain = 14;
+
+    /**
+     * JAXB Constructor
+     */
+    public RspTunerConfiguration()
+    {
+    }
+
+    /**
+     * Constructs an instance with the specified unique id
+     * @param uniqueId for the tuner
+     */
+    public RspTunerConfiguration(String uniqueId)
+    {
+        super(uniqueId);
+    }
+
+    /**
+     * Sample rate for the tuner
+     */
+    @JacksonXmlProperty(isAttribute = true, localName = "sampleRate")
+    public RspSampleRate getSampleRate()
+    {
+        return mRspSampleRate;
+    }
+
+    /**
+     * Sets the sample rate for the tuner
+     */
+    public void setSampleRate(RspSampleRate rspSampleRate)
+    {
+        mRspSampleRate = rspSampleRate;
+    }
+
+    /**
+     * Gain index to use
+     * @return gain index, 0 - 28
+     */
+    @JacksonXmlProperty(isAttribute = true, localName = "gain")
+    public int getGain()
+    {
+        return mGain;
+    }
+
+    /**
+     * Sets the gain index
+     * @param gain index, 0 - 28
+     */
+    public void setGain(int gain)
+    {
+        if(GainReduction.MIN_GAIN_INDEX <= gain && gain <= GainReduction.MAX_GAIN_INDEX)
+        {
+            mGain = gain;
+        }
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/RspTunerController.java

@@ -0,0 +1,325 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay;
+
+import io.github.dsheirer.buffer.INativeBuffer;
+import io.github.dsheirer.sample.Listener;
+import io.github.dsheirer.source.SourceException;
+import io.github.dsheirer.source.tuner.ITunerErrorListener;
+import io.github.dsheirer.source.tuner.TunerController;
+import io.github.dsheirer.source.tuner.configuration.TunerConfiguration;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.IDeviceEventListener;
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.IStreamListener;
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.StreamCallbackParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.TunerSelect;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.event.EventType;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.event.GainCallbackParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.event.PowerOverloadCallbackParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.event.RspDuoModeCallbackParameters;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Abstract/Base RSP tuner controller
+ */
+public abstract class RspTunerController<I extends IControlRsp> extends TunerController
+        implements IDeviceEventListener, IStreamListener
+{
+    private static final Logger mLog = LoggerFactory.getLogger(RspTunerController.class);
+    protected static final long MINIMUM_FREQUENCY = 100_000;
+    protected static final long MAXIMUM_FREQUENCY = 2_000_000_000;
+    protected static final int MIDDLE_UNUSABLE_BANDWIDTH = 0;
+    private I mControlRsp;
+
+    /**
+     * Abstract tuner controller class.  The tuner controller manages frequency bandwidth and currently tuned channels
+     * that are being fed samples from the tuner.
+     *
+     * @param controlRsp that is the RSP tuner
+     * @param tunerErrorListener to monitor errors produced from this tuner controller
+     */
+    public RspTunerController(I controlRsp, ITunerErrorListener tunerErrorListener)
+    {
+        super(tunerErrorListener);
+        mControlRsp = controlRsp;
+
+        //Register this controller to receive device events and sample streams when startStream() is invoked.
+        mControlRsp.resister(this, this);
+
+        setMinimumFrequency(MINIMUM_FREQUENCY);
+        setMaximumFrequency(MAXIMUM_FREQUENCY);
+        setMiddleUnusableHalfBandwidth(MIDDLE_UNUSABLE_BANDWIDTH);
+        setUsableBandwidthPercentage(1.0); //Initial value
+    }
+
+    @Override
+    public void apply(TunerConfiguration config) throws SourceException
+    {
+        if(config instanceof RspTunerConfiguration rtc)
+        {
+            //This sets the frequency and software PPM
+            super.apply(config);
+
+            try
+            {
+                setSampleRate(rtc.getSampleRate());
+            }
+            catch(SDRPlayException se)
+            {
+                mLog.error("Error setting RSP sample rate to " + rtc.getSampleRate(), se);
+            }
+
+            try
+            {
+                getControlRsp().setGain(rtc.getGain());
+            }
+            catch(SDRPlayException se)
+            {
+                mLog.error("Error setting RSP gain index to " + rtc.getGain());
+            }
+        }
+    }
+
+    /**
+     * The RSP control for this tuner controller
+     */
+    public I getControlRsp()
+    {
+        return mControlRsp;
+    }
+
+    @Override
+    public TunerSelect getTunerSelect()
+    {
+        return mControlRsp.getTunerSelect();
+    }
+
+    @Override
+    public void processStream(short[] inphase, short[] quadrature,
+                              StreamCallbackParameters parameters, boolean reset)
+    {
+        //RSP I/Q sample buffers are small and don't currently get fragmented by the RspNativeBuffer, so we don't
+        //calculate the sub-buffer samples per millisecond value -- just use a constant value of 0.
+        mNativeBufferBroadcaster.broadcast(new RspNativeBuffer(inphase, quadrature, System.currentTimeMillis(), 0.0f));
+
+        if(reset)
+        {
+//            mLog.info(getControlRsp().getDeviceDescriptor().getDeviceType() + " - sample stream was reset");
+        }
+        if(parameters.isGainReductionChanged())
+        {
+//            mLog.info("^^^ Got a gain reduction change");
+        }
+        if(parameters.isRfFrequencyChanged())
+        {
+//            mLog.info("^^^ Got a frequency changed");
+        }
+        if(parameters.isSampleRateChanged())
+        {
+//            mLog.info("^^^ Got a sample rate changed");
+        }
+    }
+
+    /**
+     * Starts this RSP tuner and attempts to claim the device via the API
+     * @throws SourceException
+     */
+    @Override
+    public void start() throws SourceException
+    {
+        try
+        {
+            mControlRsp.start();
+        }
+        catch(SDRPlayException se)
+        {
+            throw new SourceException("Unable to select tuner - in use");
+        }
+    }
+
+    @Override
+    public void stop()
+    {
+        try
+        {
+            mControlRsp.stop();
+        }
+        catch(SDRPlayException se)
+        {
+            mLog.error("Error releasing RSP tuner device", se);
+        }
+    }
+
+    /**
+     * Adds the listener to receive native buffers and starts the sample stream when this is the first listener.
+     * @param listener to add
+     */
+    @Override
+    public void addBufferListener(Listener<INativeBuffer> listener)
+    {
+        mBufferListenerLock.lock();
+
+        try
+        {
+            if(!hasBufferListeners())
+            {
+                mControlRsp.startStream();
+            }
+
+            super.addBufferListener(listener);
+        }
+        finally
+        {
+            mBufferListenerLock.unlock();
+        }
+    }
+
+    /**
+     * Removes the listener from receiving native buffers and stops the sample stream when this is the last listener.
+     * @param listener to remove
+     */
+    @Override
+    public void removeBufferListener(Listener<INativeBuffer> listener)
+    {
+        mBufferListenerLock.lock();
+
+        try
+        {
+            super.removeBufferListener(listener);
+
+            if(!hasBufferListeners())
+            {
+                mControlRsp.stopStream();
+            }
+        }
+        finally
+        {
+            mBufferListenerLock.unlock();
+        }
+    }
+
+    /**
+     * Currently tuned frequency
+     * @return frequency in Hertz
+     * @throws SourceException if there is an error
+     */
+    @Override
+    public long getTunedFrequency() throws SourceException
+    {
+        try
+        {
+            return getControlRsp().getTunedFrequency();
+        }
+        catch(SDRPlayException se)
+        {
+            throw new SourceException("Error setting tuned frequency", se);
+        }
+    }
+
+    /**
+     * Sets the center tuned frequency.
+     * @param frequency in Hertz
+     * @throws SourceException if there is an error
+     */
+    @Override
+    public void setTunedFrequency(long frequency) throws SourceException
+    {
+        try
+        {
+            getControlRsp().setTunedFrequency(frequency);
+        }
+        catch(SDRPlayException se)
+        {
+            throw new SourceException("Unable to set center frequency [" + frequency + "]", se);
+        }
+    }
+
+    /**
+     * Sets the sample rate
+     * @param rspSampleRate to apply
+     * @throws SDRPlayException if there is an error
+     */
+    public void setSampleRate(RspSampleRate rspSampleRate) throws SDRPlayException
+    {
+        getControlRsp().setSampleRate(rspSampleRate);
+
+        try
+        {
+            mFrequencyController.setSampleRate((int) rspSampleRate.getEffectiveSampleRate());
+        }
+        catch(SourceException se)
+        {
+            mLog.error("Error setting sample rate in frequency controller");
+        }
+
+        //Update the usable bandwidth based on the sample rate and filtered bandwidth
+        setUsableBandwidthPercentage(rspSampleRate.getUsableBandwidth());
+    }
+
+    @Override
+    public double getCurrentSampleRate() throws SourceException
+    {
+        return getControlRsp().getCurrentSampleRate();
+    }
+
+    @Override
+    public int getBufferSampleCount()
+    {
+        return 128;
+    }
+
+    //Device Event Listener interface methods ...
+    @Override
+    public void processEvent(EventType eventType, TunerSelect tunerSelect) {}
+    @Override
+    public void processGainChange(TunerSelect tunerSelect, GainCallbackParameters parameters) {}
+    @Override
+    public void processRspDuoModeChange(TunerSelect tunerSelect, RspDuoModeCallbackParameters parameters) {}
+    @Override
+    public void processPowerOverload(TunerSelect tunerSelect, PowerOverloadCallbackParameters parameters)
+    {
+        if(getControlRsp() != null)
+        {
+            try
+            {
+                getControlRsp().acknowledgePowerOverload(tunerSelect);
+            }
+            catch(SDRPlayException se)
+            {
+                mLog.error("Unable to acknowledge power overload for [" + tunerSelect + "]", se);
+            }
+        }
+    }
+
+    @Override
+    public void processDeviceRemoval(TunerSelect tunerSelect)
+    {
+        mLog.info("Processing device removal for tuner [" + tunerSelect + "] controller class [" + getClass().getSimpleName() + "]");
+        //Command the control RSP to nullify the device so that we cease all attempts to control the device via the API
+        if(getControlRsp() != null)
+        {
+            getControlRsp().deviceRemoved();
+        }
+
+        //Signal that tuner is removed so parent tuner and discovered tuner wrapper can do graceful removal/cleanup
+        tunerRemoved();
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/RspTunerEditor.java

@@ -0,0 +1,108 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay;
+
+import io.github.dsheirer.preference.UserPreferences;
+import io.github.dsheirer.source.tuner.manager.TunerManager;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.GainReduction;
+import io.github.dsheirer.source.tuner.ui.TunerEditor;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.swing.JLabel;
+import javax.swing.JOptionPane;
+import javax.swing.JSlider;
+
+/**
+ * Abstract RSP tuner editor
+ */
+public abstract class RspTunerEditor<C extends RspTunerConfiguration> extends TunerEditor<RspTuner,C>
+{
+    private Logger mLog = LoggerFactory.getLogger(RspTunerEditor.class);
+    private JSlider mGainSlider;
+    private JLabel mGainValueLabel;
+
+    /**
+     * Constructs an instance
+     * @param userPreferences for preference settings
+     * @param tunerManager to notify for state changes
+     * @param discoveredTuner to be edited.
+     */
+    public RspTunerEditor(UserPreferences userPreferences, TunerManager tunerManager, DiscoveredRspTuner discoveredTuner)
+    {
+        super(userPreferences, tunerManager, discoveredTuner);
+    }
+
+    private RspTunerController getTunerController()
+    {
+        return (RspTunerController) getTuner().getTunerController();
+    }
+
+    /**
+     * Gain reduction slider control
+     */
+    protected JSlider getGainSlider()
+    {
+        if(mGainSlider == null)
+        {
+            mGainSlider = new JSlider(JSlider.HORIZONTAL, GainReduction.MIN_GAIN_INDEX,
+                    GainReduction.MAX_GAIN_INDEX, GainReduction.MIN_GAIN_INDEX);
+            mGainSlider.setEnabled(false);
+            mGainSlider.setMajorTickSpacing(1);
+            mGainSlider.setPaintTicks(true);
+            mGainSlider.addChangeListener(event ->
+            {
+                int gain = mGainSlider.getValue();
+
+                if(hasTuner() && !isLoading())
+                {
+                    try
+                    {
+                        getTunerController().getControlRsp().setGain(gain);
+                        save();
+                    }
+                    catch(Exception e)
+                    {
+                        mLog.error("Couldn't set RSP gain to:" + gain, e);
+                        JOptionPane.showMessageDialog(mGainSlider, "Couldn't set RSP gain value to " + gain);
+                    }
+                }
+
+                getGainValueLabel().setText(String.valueOf(gain));
+            });
+        }
+
+        return mGainSlider;
+    }
+
+    /**
+     * Label for displaying current gain index value
+     */
+    protected JLabel getGainValueLabel()
+    {
+        if(mGainValueLabel == null)
+        {
+            mGainValueLabel = new JLabel("0");
+            mGainValueLabel.setEnabled(false);
+        }
+
+        return mGainValueLabel;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/DeviceSelectionMode.java

@@ -0,0 +1,106 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.device.RspDuoMode;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.TunerSelect;
+import java.util.EnumSet;
+
+/**
+ * Enumeration of modes that indicate how each SDRplay RSP device can be selected
+ */
+public enum DeviceSelectionMode
+{
+    //All RSP devices
+    SINGLE_TUNER_1("Single Tuner 1", RspDuoMode.SINGLE_TUNER, TunerSelect.TUNER_1),
+    SINGLE_TUNER_2("Single Tuner 2", RspDuoMode.SINGLE_TUNER, TunerSelect.TUNER_2),
+    MASTER_TUNER_1("Master - Tuner 1", RspDuoMode.MASTER, TunerSelect.TUNER_1),
+    SLAVE_TUNER_2("Slave - Tuner 2", RspDuoMode.SLAVE, TunerSelect.TUNER_2);
+
+    private String mDescription;
+    private RspDuoMode mRspDuoMode;
+    private TunerSelect mTunerSelect;
+
+    /**
+     * Private constructor
+     * @param description of the mode
+     * @param rspDuoMode that corresponds to the mode
+     * @param tunerSelect tuner(s) that correspond to the mode
+     */
+    DeviceSelectionMode(String description, RspDuoMode rspDuoMode, TunerSelect tunerSelect)
+    {
+        mDescription = description;
+        mRspDuoMode = rspDuoMode;
+        mTunerSelect = tunerSelect;
+    }
+
+    /**
+     * Set of all selection modes available for the RSPduo
+     */
+    public static final EnumSet<DeviceSelectionMode> MASTER_MODES = EnumSet.of(MASTER_TUNER_1);
+    public static final EnumSet<DeviceSelectionMode> SLAVE_MODES = EnumSet.of(SLAVE_TUNER_2);
+    public static final EnumSet<DeviceSelectionMode> SINGLE_TUNER_MODES = EnumSet.of(SINGLE_TUNER_1, SINGLE_TUNER_2);
+
+    /**
+     * RSPduo mode associated with the selection mode
+     */
+    public RspDuoMode getRspDuoMode()
+    {
+        return mRspDuoMode;
+    }
+
+    /**
+     * Indicates if this mode is designated as a master mode.
+     */
+    public boolean isMasterMode()
+    {
+        return MASTER_MODES.contains(this);
+    }
+
+    /**
+     * Indicates if this mode is designated as a slave mode.
+     */
+    public boolean isSlaveMode()
+    {
+        return SLAVE_MODES.contains(this);
+    }
+
+    /**
+     * Indicates if this is a single-tuner mode
+     */
+    public boolean isSingleTunerMode()
+    {
+        return SINGLE_TUNER_MODES.contains(this);
+    }
+
+    /**
+     * Tuner(s) associated with the selection mode
+     */
+    public TunerSelect getTunerSelect()
+    {
+        return mTunerSelect;
+    }
+
+    @Override
+    public String toString()
+    {
+        return mDescription;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/README

@@ -0,0 +1,15 @@
+SDRplay API 3.07
+Auto-created from sdrplay api header files using JDK 17 jextract tool:
+
+1. Install the sdrplay api
+2. On Linux, headers are located here: /usr/local/include/*.h
+3. cd into the (project)/jSDRplay/sdrplay-api/src/main/java/ directory
+4. Run: jextract -t io.github.dsheirer.sdrplay.api /usr/local/include/sdrplay_api.h -l libsdrplay_api --source
+
+IntelliJ setup
+1. Run configuration
+2. JVM Option: --enable-native-access=ALL-UNNAMED
+3. Add library location to the java.library.path:
+   Linux: /usr/local/lib
+   Windows: ??
+   MacOS: ??

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/SDRPlayException.java

@@ -0,0 +1,63 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api;
+
+/**
+ * SDRplay checked exception.
+ */
+public class SDRPlayException extends Exception
+{
+    private Status mStatus = Status.UNKNOWN;
+
+    /**
+     * Creates an exception
+     * @param message for the exception
+     */
+    public SDRPlayException(String message)
+    {
+        super(message);
+    }
+
+    /**
+     * Creates an operation exception
+     * @param message for the exception
+     * @param status of the operation
+     */
+    public SDRPlayException(String message, Status status)
+    {
+        super(message + " Status:" + status);
+        mStatus = status;
+    }
+
+    /**
+     * Creates an exception
+     * @param message for the exception
+     * @param throwable nested exception
+     */
+    public SDRPlayException(String message, Throwable throwable)
+    {
+        super(message, throwable);
+    }
+
+    public Status getStatus()
+    {
+        return mStatus;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/SDRPlayUpdateException.java

@@ -0,0 +1,49 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * SDRplay failed update request checked exception.
+ */
+public class SDRPlayUpdateException extends SDRPlayException
+{
+    private List<UpdateReason> mUpdateReasons = new ArrayList<>();
+
+    /**
+     * Creates an operation exception
+     * @param status of the operation
+     * @param updateReasons that were submitted
+     */
+    public SDRPlayUpdateException(Status status, List<UpdateReason> updateReasons)
+    {
+        super("Unable to update device parameters: " + updateReasons, status);
+    }
+
+    /**
+     * List of update reasons that failed.
+     */
+    public List<UpdateReason> getUpdateReasons()
+    {
+        return mUpdateReasons;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/SDRplay.java

@@ -0,0 +1,708 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.CallbackFunctions;
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.IDeviceEventListener;
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.IStreamListener;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.Device;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.DeviceFactory;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.DeviceInfo;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.DeviceType;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.IDeviceStruct;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.TunerSelect;
+import io.github.dsheirer.source.tuner.sdrplay.api.error.DebugLevel;
+import io.github.dsheirer.source.tuner.sdrplay.api.error.ErrorInformation;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.composite.CompositeParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.composite.CompositeParametersFactory;
+import io.github.dsheirer.source.tuner.sdrplay.api.util.Flag;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_DeviceT;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_ErrorInfoT;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_h;
+import java.lang.foreign.MemoryAddress;
+import java.lang.foreign.MemorySegment;
+import java.lang.foreign.MemorySession;
+import java.lang.foreign.ValueLayout;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.apache.commons.lang3.SystemUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * SDRplay API wrapper.
+ *
+ * Note: the jextract auto-generated RuntimeHelper contains a static block that attempts to load the sdrplay_api
+ * library.  This approach fails because the API is installed to a non-default location.  Comment out the library
+ * load code in the RuntimeHelper and we'll directly load the library.
+ *
+ * //        System.loadLibrary("libsdrplay_api");
+ */
+public class SDRplay
+{
+    public static final String SDRPLAY_API_LIBRARY_NAME = "sdrplay_api";
+    public static final String SDRPLAY_API_PATH_LINUX = "/usr/local/lib/libsdrplay_api.so";
+    public static final String SDRPLAY_API_PATH_MAC_OS = "/usr/local/lib/libsdrplay_api.dylib";
+    public static final String SDRPLAY_API_PATH_WINDOWS = System.getenv("ProgramFiles") +
+            "\\SDRplay\\API\\" + (System.getProperty("sun.arch.data.model").contentEquals("64") ? "x64" : "x86") +
+            "\\" + SDRPLAY_API_LIBRARY_NAME;
+    public static final String JAVA_LIBRARY_PATH_KEY = "java.library.path";
+
+    private static final Logger mLog = LoggerFactory.getLogger(SDRplay.class);
+
+    /**
+     * Foreign memory allocation resource scope
+     */
+    private final MemorySession mGlobalMemorySession = MemorySession.global();
+
+    /**
+     * Indicates if libsdrplay_api.xx library was found and loaded.
+     */
+    private boolean mSdrplayLibraryLoaded;
+
+    /**
+     * Indicates if the library is available, meaning that the host system library was loaded AND it supports the
+     * correct API version
+     */
+    private boolean mAvailable;
+
+    /**
+     * Map of (reusable) callback functions for each device.  Key value is the device handle memory address
+     */
+    private final Map<MemoryAddress, CallbackFunctions> mDeviceCallbackFunctionsMap = new HashMap<>();
+
+    /**
+     * Detected version of the API installed on the local system.
+     */
+    private Version mVersion;
+
+    /**
+     * Controls logging of library load status so that it only gets logged once.  Set to false once initial logging complete
+     */
+    private static boolean sLibraryLoadStatusLogging = true;
+
+    /**
+     * Constructs an instance of the SDRPLay API
+     */
+    public SDRplay()
+    {
+        mSdrplayLibraryLoaded = loadLibrary();
+
+        if(mSdrplayLibraryLoaded)
+        {
+            Status openStatus = open();
+            if(sLibraryLoadStatusLogging)
+            {
+                mLog.info("API library - open status: " + openStatus);
+            }
+            mAvailable = openStatus.success() && getVersion().isSupported();
+        }
+        else
+        {
+            if(sLibraryLoadStatusLogging)
+            {
+                mLog.info("API library was not loaded");
+            }
+            mAvailable = false;
+        }
+
+        if(isAvailable())
+        {
+            if(sLibraryLoadStatusLogging)
+            {
+                mLog.info("API library v" + getVersion() + " - loaded");
+            }
+        }
+        else
+        {
+            if(sLibraryLoadStatusLogging)
+            {
+                mLog.info("API library is not available.");
+            }
+        }
+
+        sLibraryLoadStatusLogging = false;
+    }
+
+    /**
+     * Global Memory Session for this API instance
+     */
+    private MemorySession getGlobalMemorySession()
+    {
+        return mGlobalMemorySession;
+    }
+
+    /**
+     * Attempts to load the SDRPlay API library from the local system.
+     *
+     * @return true if library was loaded successfully.
+     */
+    private boolean loadLibrary()
+    {
+        try
+        {
+            String libraryPath = getSDRplayLibraryPath();
+            if(sLibraryLoadStatusLogging)
+            {
+                mLog.info("Loading API Library from default install path: " + libraryPath);
+            }
+            System.loadLibrary(SDRPLAY_API_LIBRARY_NAME);
+            return true;
+        }
+        catch(Throwable t)
+        {
+            mLog.error("Unable to load SDRplay API library from default install path.  Loading from java system library path", t);
+
+            try
+            {
+                System.loadLibrary(SDRPLAY_API_LIBRARY_NAME);
+                return true;
+            }
+            catch(Throwable t2)
+            {
+                String name = System.mapLibraryName(SDRPLAY_API_LIBRARY_NAME);
+
+                if(sLibraryLoadStatusLogging)
+                {
+                    mLog.warn("SDRPlay API library not found/installed on this system.  Ensure the API is installed either " +
+                            "in the default install location or the install location is included in the " +
+                            "'java.library.path' JVM property contains path to the library file [" + name +
+                            "].  Current library path property contents: " + System.getProperty(JAVA_LIBRARY_PATH_KEY), t);
+                }
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * List of devices available via the API
+     * @return list of device infos.
+     * @throws SDRPlayException if there is an error
+     */
+    public List<DeviceInfo> getDeviceInfos() throws SDRPlayException
+    {
+        return DeviceFactory.parseDeviceInfos(getDeviceStructures());
+    }
+
+    /**
+     * List of device structures for devices available from the API
+     * @return list of device structures
+     * @throws SDRPlayException if there is an error
+     */
+    public List<IDeviceStruct> getDeviceStructures() throws SDRPlayException
+    {
+        List<IDeviceStruct> deviceStructs = new ArrayList<>();
+
+        //Get a version-correct array of DeviceT structures
+        MemorySegment devicesArray = DeviceFactory.createDeviceArray(getVersion(), getGlobalMemorySession());
+
+        MemorySegment deviceCount = getGlobalMemorySession().allocate(ValueLayout.JAVA_INT, 0);
+
+        Status status = Status.fromValue(sdrplay_api_h.sdrplay_api_GetDevices(devicesArray, deviceCount,
+                sdrplay_api_h.SDRPLAY_MAX_DEVICES()));
+
+        if(status.success())
+        {
+            int count = deviceCount.get(ValueLayout.JAVA_INT, 0);
+            deviceStructs.addAll(DeviceFactory.parseDeviceStructs(getVersion(), devicesArray, count));
+        }
+        else
+        {
+            mLog.error("Couldn't load RSP devices from API.  Status: " + status);
+        }
+
+        return deviceStructs;
+    }
+
+    /**
+     * Find an RSP device descriptor by serial number.
+     * @param serialNumber to search for
+     * @return matching device descriptor, or null.
+     * @throws SDRPlayException if there is an error parsing the device structures
+     */
+    public DeviceInfo getDevice(String serialNumber) throws SDRPlayException
+    {
+        for(DeviceInfo deviceInfo: getDeviceInfos())
+        {
+            if(deviceInfo.getSerialNumber().equals(serialNumber))
+            {
+                return deviceInfo;
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * Obtains the device that matches the device info argument.
+     * @param deviceInfo to match
+     * @return non-null device
+     * @throws SDRPlayException
+     */
+    public Device getDevice(DeviceInfo deviceInfo) throws SDRPlayException
+    {
+        Device device = null;
+
+        if(isAvailable())
+        {
+            List<IDeviceStruct> deviceStructs = getDeviceStructures();
+
+            for(IDeviceStruct deviceStruct: deviceStructs)
+            {
+                if(deviceInfo.matches(deviceStruct))
+                {
+                    device = DeviceFactory.createDevice(this, deviceStruct);
+                    break;
+                }
+            }
+        }
+
+        if(device == null)
+        {
+            throw new SDRPlayException("Unable to find RSP device");
+        }
+
+        return device;
+    }
+
+
+    /**
+     * Finds the first device that matches the specified device type.
+     *
+     * @param deviceType to find
+     * @return the specified device type or null.
+     */
+    public DeviceInfo getDeviceInfo(DeviceType deviceType) throws SDRPlayException
+    {
+        for(DeviceInfo deviceInfo : getDeviceInfos())
+        {
+            if(deviceInfo.getDeviceType() == deviceType)
+            {
+                return deviceInfo;
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * Selects the device for exclusive use.  This method is invoked by the device instance.
+     *
+     * @param memorySegment of the device in foreign memory
+     * @throws SDRPlayException if the device argument was not created by this API instance or if unable to lock or
+     * unlock the device API for exclusive use, or if unable to select the device.
+     */
+    public void select(MemorySegment memorySegment) throws SDRPlayException
+    {
+        lockDeviceApi();
+        Status selectStatus = Status.fromValue(sdrplay_api_h.sdrplay_api_SelectDevice(memorySegment));
+        unlockDeviceApi();
+
+        if(selectStatus.fail())
+        {
+            throw new SDRPlayException("Unable to select the device", selectStatus);
+        }
+    }
+
+    /**
+     * Releases the device from exclusive use.  This method is invoked by the device instance.
+     *
+     * @param memorySegment of the device in foreign memory
+     * @throws SDRPlayException if the device argument was not created by this API instance or if unable to release
+     * the device
+     */
+    public void release(MemorySegment memorySegment) throws SDRPlayException
+    {
+        Status status = Status.fromValue(sdrplay_api_h.sdrplay_api_ReleaseDevice(memorySegment));
+
+        if(status.fail())
+        {
+            mLog.info("API call to release device failed, however device is effectively released now.");
+        }
+    }
+
+    /**
+     * Retrieves the initial composite parameters for each device.  This should only be invoked once, on
+     * startup, for each device.  Changes made to the device parameters should invoke update() method to apply changes.
+     *
+     * @param deviceType to load parameters
+     * @param deviceHandle to device
+     * @return constructed device composite paramaters
+     */
+    public CompositeParameters getCompositeParameters(DeviceType deviceType, MemoryAddress deviceHandle) throws SDRPlayException
+    {
+        //Allocate a pointer that the api will fill with the memory address of the device parameters in memory.
+        MemorySegment pointer = getGlobalMemorySession().allocate(ValueLayout.ADDRESS);
+        Status status = Status.fromValue(sdrplay_api_h.sdrplay_api_GetDeviceParams(deviceHandle, pointer));
+
+        if(status.success())
+        {
+            //Get the memory address from the pointer's memory segment to where the structure is located
+            MemoryAddress memoryAddress = pointer.get(ValueLayout.ADDRESS, 0);
+
+            //The structure's memory is already allocated ... wrap a memory segment around it
+            MemorySegment memorySegment = sdrplay_api_DeviceT.ofAddress(memoryAddress, mGlobalMemorySession);
+            return CompositeParametersFactory.create(deviceType, memorySegment, mGlobalMemorySession);
+        }
+        else
+        {
+            throw new SDRPlayException("Error retrieving device composite parameters", status);
+        }
+    }
+
+    /**
+     * Initializes a device for use.
+     *
+     * @param deviceHandle to the device
+     * @param callbackFunctions to receive stream data from A and (optionally) B channels and events.
+     * @throws SDRPlayException if the device is not selected of if unable to init the device
+     */
+    private void init(MemoryAddress deviceHandle, MemorySegment callbackFunctions) throws SDRPlayException
+    {
+        //Since we don't need/use the callback context ... setup as a pointer to the callback functions
+        MemorySegment contextPointer = getGlobalMemorySession().allocate(ValueLayout.ADDRESS, callbackFunctions);
+        Status status = Status.fromValue(sdrplay_api_h.sdrplay_api_Init(deviceHandle, callbackFunctions, contextPointer));
+
+        if(!status.success())
+        {
+            throw new SDRPlayException("Error while initializing device", status);
+        }
+    }
+
+    /**
+     * Initializes a device for single-tuner use or for dual-tuner use as stream A
+     *
+     * @param device to initialize
+     * @param deviceHandle to the device
+     * @param eventListener to receive events for this device
+     * @param streamListener to receive samples for stream A
+     * @throws SDRPlayException if the device is not selected of if unable to init the device
+     */
+    public void initA(Device device, MemoryAddress deviceHandle, IDeviceEventListener eventListener,
+                      IStreamListener streamListener) throws SDRPlayException
+    {
+        CallbackFunctions callbackFunctions = mDeviceCallbackFunctionsMap.get(deviceHandle);
+
+        if(callbackFunctions == null)
+        {
+            callbackFunctions = new CallbackFunctions(getGlobalMemorySession(), eventListener, streamListener,
+                    device.getStreamCallbackListener());
+            mDeviceCallbackFunctionsMap.put(deviceHandle, callbackFunctions);
+        }
+        else
+        {
+            callbackFunctions.setDeviceEventListener(eventListener);
+            callbackFunctions.setStreamAListener(streamListener);
+        }
+
+        init(deviceHandle, callbackFunctions.getCallbackFunctionsMemorySegment());
+    }
+
+    /**
+     * Initializes a device for dual-tuner use as stream B
+     *
+     * @param device to initialize
+     * @param deviceHandle to the device
+     * @param eventListener to receive events for this device
+     * @param streamListener to receive samples for stream B
+     * @throws SDRPlayException if the device is not selected of if unable to init the device
+     */
+    public void initB(Device device, MemoryAddress deviceHandle, IDeviceEventListener eventListener,
+                      IStreamListener streamListener) throws SDRPlayException
+    {
+        CallbackFunctions callbackFunctions = mDeviceCallbackFunctionsMap.get(deviceHandle);
+
+        if(callbackFunctions == null)
+        {
+            callbackFunctions = new CallbackFunctions(getGlobalMemorySession(), eventListener, streamListener, streamListener,
+                    device.getStreamCallbackListener());
+            mDeviceCallbackFunctionsMap.put(deviceHandle, callbackFunctions);
+        }
+        else
+        {
+            callbackFunctions.setDeviceEventListener(eventListener);
+            callbackFunctions.setStreamAListener(streamListener);
+        }
+
+        init(deviceHandle, callbackFunctions.getCallbackFunctionsMemorySegment());
+    }
+
+    /**
+     * Un-Initializes a device from use.
+     *
+     * @param deviceHandle to the device
+     * @throws SDRPlayException if error during uninit or if device is not selected
+     */
+    public void uninit(MemoryAddress deviceHandle) throws SDRPlayException
+    {
+        Status status = Status.fromValue(sdrplay_api_h.sdrplay_api_Uninit(deviceHandle));
+
+        if(status.fail() && status != Status.NOT_INITIALIZED)
+        {
+            throw new SDRPlayException("Error while un-initializing device", status);
+        }
+    }
+
+    /**
+     * Applies updates made to the device parameters.  The device parameter that was updated is specified in the
+     * update reason.
+     * <p>
+     * Note: this method is synchronized to prevent multiple threads from attempting to send update requests
+     * concurrently, which will cause a failed request.
+     *
+     * @param device to update
+     * @param deviceHandle for the device
+     * @param tunerSelect identifies which tuner to apply the updates
+     * @param updateReasons identifying what was updated
+     * @throws SDRPlayException if the device is not selected, or if unable to update the device parameters
+     */
+    public synchronized void update(Device device, MemoryAddress deviceHandle, TunerSelect tunerSelect,
+                                    UpdateReason... updateReasons) throws SDRPlayException
+    {
+        int reasons = UpdateReason.getReasons(updateReasons);
+        int extendedReasons = UpdateReason.getExtendedReasons(updateReasons);
+
+        Status status = Status.fromValue(sdrplay_api_h.sdrplay_api_Update(deviceHandle, tunerSelect.getValue(),
+                reasons, extendedReasons));
+
+        if(status.fail())
+        {
+            throw new SDRPlayUpdateException(status, Arrays.stream(updateReasons).toList());
+        }
+    }
+
+    /**
+     * Retrieve error information for the last error for the specified device.
+     *
+     * @param deviceSegment for the device
+     * @return error information
+     */
+    private ErrorInformation getLastError(MemorySegment deviceSegment)
+    {
+        MemoryAddress errorAddress = sdrplay_api_h.sdrplay_api_GetLastError(deviceSegment);
+        MemorySegment errorSegment = sdrplay_api_ErrorInfoT.ofAddress(errorAddress, mGlobalMemorySession);
+        return new ErrorInformation(errorSegment);
+    }
+
+    /**
+     * Sets the debug level logging for the specified device
+     *
+     * @param deviceHandle for the device
+     * @param debugLevel to set
+     * @throws SDRPlayException if the device is not selected or if unable to set/change the debug level.
+     */
+    public void setDebugLevel(MemoryAddress deviceHandle, DebugLevel debugLevel) throws SDRPlayException
+    {
+        Status status = Status.UNKNOWN;
+
+        if(getVersion() == Version.V3_07)
+        {
+            //V3.07 used a debug level argument
+            status = Status.fromValue(sdrplay_api_h.sdrplay_api_DebugEnable(deviceHandle, debugLevel.getValue()));
+        }
+        else if(getVersion().gte(Version.V3_08))
+        {
+            //V3.08+ uses a 0:1 flag to enable debug logging.  The method signature didn't change -- still takes an integer
+            boolean enable = debugLevel != DebugLevel.DISABLE;
+            status = Status.fromValue(sdrplay_api_h.sdrplay_api_DebugEnable(deviceHandle, Flag.of(enable)));
+        }
+
+        if(status.fail())
+        {
+            throw new SDRPlayException("Unable to set debug level", status);
+        }
+    }
+
+    /**
+     * Indicates if the SDRplay API is available and that the API library has been located and loaded for use and
+     * it the API version is supported by this jsdrplay library.
+     */
+    public boolean isAvailable()
+    {
+        return mAvailable;
+    }
+
+    /**
+     * Opens the API service.  MUST be invoked before accessing any of the API functions/methods.
+     */
+    private Status open()
+    {
+        return Status.fromValue(sdrplay_api_h.sdrplay_api_Open());
+    }
+
+    /**
+     * Closes the API service.  MUST be invoked before shutdown, after all SDRPlay API operations are completed.
+     *
+     * Note: when using multiple instances of this class, only invoke close() on a single instance.  With linux API
+     * version 3.07, if you invoked close() on one instance, then all of the other instances become unusable for
+     * performing device operations (e.g. release(), etc).  This may be an artifact of the way that the Java
+     * Foreign Function support is implemented, but not sure.  dls 1-Jan-2023
+     */
+    public Status close()
+    {
+        Status closeStatus;
+
+        try
+        {
+            closeStatus = Status.fromValue(sdrplay_api_h.sdrplay_api_Close());
+        }
+        catch(Exception e)
+        {
+            closeStatus = Status.FAIL;
+            mLog.error("Error closing SDRPlay API", e);
+        }
+
+        mSdrplayLibraryLoaded = false;
+        mAvailable = false;
+        return closeStatus;
+    }
+
+    /**
+     * Identifies the API version.
+     * Note: if the library is not found or loaded, or if the API version is not a supported version, this method
+     * returns UNKNOWN
+     *
+     * @return version.
+     */
+    public Version getVersion()
+    {
+        if(mVersion == null)
+        {
+            if(mSdrplayLibraryLoaded)
+            {
+                MemorySegment apiVersion = getGlobalMemorySession().allocate(ValueLayout.JAVA_FLOAT, 0);
+                Status status = Status.fromValue(sdrplay_api_h.sdrplay_api_ApiVersion(apiVersion));
+                if(status.success())
+                {
+                    float version = apiVersion.get(ValueLayout.JAVA_FLOAT, 0);
+                    mVersion = Version.fromValue(version);
+                }
+            }
+
+            if(mVersion == null)
+            {
+                mVersion = Version.UNKNOWN;
+            }
+        }
+
+        return mVersion;
+    }
+
+    /**
+     * Attempts to lock the API for exclusive use of the current application. Once locked, no other applications
+     * will be able to use the API. Typically used to lock the API prior to calling sdrplay_api_GetDevices() to
+     * ensure only one application can select a given device. After completing device selection using
+     * sdrplay_api_SelectDevice(), sdrplay_api_UnlockDeviceApi() can be used to release the API. May also
+     * be used prior to calling sdrplay_api_ReleaseDevice() if it is necessary to reselect the same device.
+     */
+    private void lockDeviceApi() throws SDRPlayException
+    {
+        if(isAvailable())
+        {
+            Status status = Status.fromValue(sdrplay_api_h.sdrplay_api_LockDeviceApi());
+            if(status.fail())
+            {
+                throw new SDRPlayException("Unable to lock Device API for exclusive use", status);
+            }
+        }
+        else
+        {
+            throw new SDRPlayException("API is unavailable", Status.API_UNAVAILABLE);
+        }
+    }
+
+    /**
+     * Unlocks the device from exclusive access.
+     *
+     * @throws SDRPlayException if unable to unlock the Device API
+     */
+    private void unlockDeviceApi() throws SDRPlayException
+    {
+        if(isAvailable())
+        {
+            Status status = Status.fromValue(sdrplay_api_h.sdrplay_api_UnlockDeviceApi());
+
+            if(status.fail())
+            {
+                throw new SDRPlayException("Unable to unlock Device API", status);
+            }
+        }
+        else
+        {
+            throw new SDRPlayException("API is unavailable", Status.API_UNAVAILABLE);
+        }
+    }
+
+    /**
+     * Identifies the java library path for the sdrplay api library at runtime.
+     */
+    public static String getSDRplayLibraryPath()
+    {
+        if(SystemUtils.IS_OS_WINDOWS)
+        {
+            return SDRPLAY_API_PATH_WINDOWS;
+        }
+        else if(SystemUtils.IS_OS_LINUX)
+        {
+            return SDRPLAY_API_PATH_LINUX;
+        }
+        else if(SystemUtils.IS_OS_MAC_OSX)
+        {
+            return SDRPLAY_API_PATH_MAC_OS;
+        }
+
+        mLog.error("Unrecognized operating system.  Cannot identify sdrplay api library path");
+        return "";
+    }
+
+    public static void main(String[] args)
+    {
+        /**
+         * Note: on windows, add the following environment variable to the IntelliJ launcher:
+         * -Djava.library.path="C:\Program Files\SDRplay\API\x64"
+         *
+         * Alternately, we can add this location to the Windows PATH environment variable and
+         * Java will look there for the library, without having to specify it as a launcher
+         * option.  This would allow for users that have installed the API to an alternate location.
+         */
+        SDRplay sdrplay = new SDRplay();
+        Status status = sdrplay.open();
+        mLog.info("Open Status: " + status);
+
+        try
+        {
+            for(DeviceInfo deviceInfo: sdrplay.getDeviceInfos())
+            {
+                mLog.info("Found: " + deviceInfo);
+            }
+        }
+        catch(SDRPlayException se)
+        {
+            mLog.info("Error", se);
+        }
+
+        Status closeStatus = sdrplay.close();
+        mLog.info("Close Status: " + closeStatus);
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/Status.java

@@ -0,0 +1,109 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_h;
+
+public enum Status
+{
+    SUCCESS(sdrplay_api_h.sdrplay_api_Success(), "Success"),
+    FAIL(sdrplay_api_h.sdrplay_api_Fail(), "Fail"),
+    INVALID_PARAMETER(sdrplay_api_h.sdrplay_api_InvalidParam(), "Invalid Parameter.  Null pointer or invalid operating mode"),
+    OUT_OF_RANGE(sdrplay_api_h.sdrplay_api_OutOfRange(), "Out of Range.  One or more parameters are set incorrectly"),
+    GAIN_UPDATE_ERROR(sdrplay_api_h.sdrplay_api_GainUpdateError(), "Gain Update Error"),
+    RF_UPDATE_ERROR(sdrplay_api_h.sdrplay_api_RfUpdateError(), "Frequency Update Error"),
+    FS_UPDATE_ERROR(sdrplay_api_h.sdrplay_api_FsUpdateError(), "Sample Rate Update Error"),
+    HARDWARE_ERROR(sdrplay_api_h.sdrplay_api_HwError(), "Hardware Error during tuner initialization"),
+    ALIASING_ERROR(sdrplay_api_h.sdrplay_api_AliasingError(), "Aliasing Error"),
+    ALREADY_INITIALIZED(sdrplay_api_h.sdrplay_api_AlreadyInitialised(), "Already Initialized"),
+    NOT_INITIALIZED(sdrplay_api_h.sdrplay_api_NotInitialised(), "Not Initialized"),
+    NOT_ENABLED(sdrplay_api_h.sdrplay_api_NotEnabled(), "Not Enabled"),
+    HARDWARE_VERSION_ERROR(sdrplay_api_h.sdrplay_api_HwVerError(), "Hardware Version Error"),
+    OUT_OF_MEMORY(sdrplay_api_h.sdrplay_api_OutOfMemError(), "Out Of Memory"),
+    SERVICE_NOT_RESPONDING(sdrplay_api_h.sdrplay_api_ServiceNotResponding(), "Service Not Responding"),
+    START_PENDING(sdrplay_api_h.sdrplay_api_StartPending(), "Start Pending"),
+    STOP_PENDING(sdrplay_api_h.sdrplay_api_StopPending(), "Stop Pending"),
+    INVALID_MODE(sdrplay_api_h.sdrplay_api_InvalidMode(), "Invalid Mode"),
+    FAILED_VERIFICATION_1(sdrplay_api_h.sdrplay_api_FailedVerification1(), "Failed Verification 1"),
+    FAILED_VERIFICATION_2(sdrplay_api_h.sdrplay_api_FailedVerification2(), "Failed Verification 2"),
+    FAILED_VERIFICATION_3(sdrplay_api_h.sdrplay_api_FailedVerification3(), "Failed Verification 3"),
+    FAILED_VERIFICATION_4(sdrplay_api_h.sdrplay_api_FailedVerification4(), "Failed Verification 4"),
+    FAILED_VERIFICATION_5(sdrplay_api_h.sdrplay_api_FailedVerification5(), "Failed Verification 5"),
+    FAILED_VERIFICATION_6(sdrplay_api_h.sdrplay_api_FailedVerification6(), "Failed Verification 6"),
+    INVALID_SERVICE_VERSION(sdrplay_api_h.sdrplay_api_InvalidServiceVersion(), "Invalid Service Version"),
+
+    //Custom status codes
+    API_UNAVAILABLE(-2, "SDRplay API is not installed or it has an unsupported version"),
+    UNKNOWN(-1, "Unknown");
+
+    private int mValue;
+    private String mDescription;
+
+    Status(int value, String description)
+    {
+        mValue = value;
+        mDescription = description;
+    }
+
+    /**
+     * Status code value
+     */
+    public int getValue()
+    {
+        return mValue;
+    }
+
+    /**
+     * Indicates if this is a SUCCESS status.
+     */
+    public boolean success()
+    {
+        return this == Status.SUCCESS;
+    }
+
+    public boolean fail()
+    {
+        return this != Status.SUCCESS;
+    }
+
+    /**
+     * Lookup the status from a return code
+     * @param value to lookup
+     * @return status or UKNOWN if the code is not recognized
+     */
+    public static Status fromValue(int value)
+    {
+        for(Status status: Status.values())
+        {
+            if(status.getValue() == value)
+            {
+                return status;
+            }
+        }
+        
+        return UNKNOWN;
+    }
+
+    @Override
+    public String toString()
+    {
+        return mDescription;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/UpdateReason.java

@@ -0,0 +1,196 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_h;
+import java.util.EnumSet;
+
+/**
+ * Update reason.
+ *
+ * These entries are used to notify the SDRplay API once settings are updated on the device.
+ */
+public enum UpdateReason
+{
+    //Master Only mode
+    DEVICE_SAMPLE_RATE(sdrplay_api_h.sdrplay_api_Update_Dev_Fs(), "Sample Rate"),
+    DEVICE_PPM(sdrplay_api_h.sdrplay_api_Update_Dev_Ppm(), "PPM"),
+    DEVICE_SYNC_UPDATE(sdrplay_api_h.sdrplay_api_Update_Dev_SyncUpdate(), "Sync Update"),
+    DEVICE_RESET_FLAGS(sdrplay_api_h.sdrplay_api_Update_Dev_ResetFlags(), "Reset Flags"),
+
+    RSP1A_BIAS_T_CONTROL(sdrplay_api_h.sdrplay_api_Update_Rsp1a_BiasTControl(), "RSP1A Bias-T Control"),
+    RSP1A_RF_NOTCH_CONTROL(sdrplay_api_h.sdrplay_api_Update_Rsp1a_RfNotchControl(), "RSP1A RF Notch Control"),
+    RSP1A_RF_DAB_NOTCH_CONTROL(sdrplay_api_h.sdrplay_api_Update_Rsp1a_RfDabNotchControl(), "RSP1A RF DAB Notch Control"),
+
+    RSP2_BIAS_T_CONTROL(sdrplay_api_h.sdrplay_api_Update_Rsp2_BiasTControl(), "RSP2 Bias-T Control"),
+    RSP2_AM_PORT_SELECT(sdrplay_api_h.sdrplay_api_Update_Rsp2_AmPortSelect(), "RSP2 AM Port Select"),
+    RSP2_ANTENNA_CONTROL(sdrplay_api_h.sdrplay_api_Update_Rsp2_AntennaControl(), "RSP2 Antenna Control"),
+    RSP2_RF_NOTCH_CONTROL(sdrplay_api_h.sdrplay_api_Update_Rsp2_RfNotchControl(), "RSP2 RF Notch Control"),
+    RSP2_EXT_REF_CONTROL(sdrplay_api_h.sdrplay_api_Update_Rsp2_ExtRefControl(), "RSP2 External Reference Control"),
+
+    RSP_DUO_EXT_REF_CONTROL(sdrplay_api_h.sdrplay_api_Update_RspDuo_ExtRefControl(), "RSPduo External Reference Control"),
+
+    SPARE_1(sdrplay_api_h.sdrplay_api_Update_Master_Spare_1(), "Spare 1"),
+    SPARE_2(sdrplay_api_h.sdrplay_api_Update_Master_Spare_2(), "Spare 2"),
+
+    //Master and Slave mode
+    TUNER_GAIN_REDUCTION(sdrplay_api_h.sdrplay_api_Update_Tuner_Gr(), "Tuner Gain Reduction"),
+    TUNER_GAIN_REDUCTION_LIMITS(sdrplay_api_h.sdrplay_api_Update_Tuner_GrLimits(), "Tuner Gain Reduction Limits"),
+    TUNER_FREQUENCY_RF(sdrplay_api_h.sdrplay_api_Update_Tuner_Frf(), "Tuner Frequency RF"),
+    TUNER_BANDWIDTH_TYPE(sdrplay_api_h.sdrplay_api_Update_Tuner_BwType(), "Tuner Bandwidth Type"),
+    TUNER_IF_TYPE(sdrplay_api_h.sdrplay_api_Update_Tuner_IfType(), "Tuner IF Type"),
+    TUNER_DC_OFFSET(sdrplay_api_h.sdrplay_api_Update_Tuner_DcOffset(), "Tuner DC Offset"),
+    TUNER_LO_MODE(sdrplay_api_h.sdrplay_api_Update_Tuner_LoMode(), "Tuner LO Mode"),
+
+    CONTROL_DC_OFFSET_IQ_IMBALANCE(sdrplay_api_h.sdrplay_api_Update_Ctrl_DCoffsetIQimbalance(), "Control DC Offset IQ Imbalance"),
+    CONTROL_DECIMATION(sdrplay_api_h.sdrplay_api_Update_Ctrl_Decimation(), "Control Decimation"),
+    CONTROL_AGC(sdrplay_api_h.sdrplay_api_Update_Ctrl_Agc(), "Control AGC"),
+    CONTROL_ADSB_MODE(sdrplay_api_h.sdrplay_api_Update_Ctrl_AdsbMode(), "Control ADSB Mode"),
+    CONTROL_OVERLOAD_MESSAGE_ACK(sdrplay_api_h.sdrplay_api_Update_Ctrl_OverloadMsgAck(), "Control Overload Message Ack"),
+
+    RSP_DUO_BIAS_T_CONTROL(sdrplay_api_h.sdrplay_api_Update_RspDuo_BiasTControl(), "RSPduo Bias-T Control"),
+    RSP_DUO_AM_PORT_SELECT(sdrplay_api_h.sdrplay_api_Update_RspDuo_AmPortSelect(), "RSPduo AM Port Select"),
+    RSP_DUO_TUNER_1_AM_NOTCH_CONTROL(sdrplay_api_h.sdrplay_api_Update_RspDuo_Tuner1AmNotchControl(), "RSPduo Tuner 1 AM Notch Control"),
+    RSP_DUO_RF_NOTCH_CONTROL(sdrplay_api_h.sdrplay_api_Update_RspDuo_RfNotchControl(), "RSPduo RF Notch Control"),
+    RSP_DUO_RF_DAB_NOTCH_CONTROL(sdrplay_api_h.sdrplay_api_Update_RspDuo_RfDabNotchControl(), "RSPduo RF DAB Notch Control"),
+
+    //Extension 1
+    EXTENSION_RSP_DX_HDR_ENABLE(sdrplay_api_h.sdrplay_api_Update_RspDx_HdrEnable(), "RSPdx HDR Enable"),
+    EXTENSION_RSP_DX_BIAS_T_CONTROL(sdrplay_api_h.sdrplay_api_Update_RspDx_BiasTControl(), "RSPdx Bias-T Control"),
+    EXTENSION_RSP_DX_ANTENNA_CONTROL(sdrplay_api_h.sdrplay_api_Update_RspDx_AntennaControl(), "RSPdx Antenna Control"),
+    EXTENSION_RSP_DX_RF_NOTCH_CONTROL(sdrplay_api_h.sdrplay_api_Update_RspDx_RfNotchControl(), "RSPdx RF Notch Control"),
+    EXTENSION_RSP_DX_RF_DAB_NOTCH_CONTROL(sdrplay_api_h.sdrplay_api_Update_RspDx_RfDabNotchControl(), "RSPdx RF DAB Notch Control"),
+    EXTENSION_RSP_DX_HDR_BANDWIDTH(sdrplay_api_h.sdrplay_api_Update_RspDx_HdrBw(), "RSPdx HDR Bandwidth"),
+    EXTENSION_NONE(sdrplay_api_h.sdrplay_api_Update_Ext1_None(), "NONE"),
+
+
+    NONE(sdrplay_api_h.sdrplay_api_Update_None(), "NONE");
+
+    private int mValue;
+    private String mDescription;
+
+    UpdateReason(int value, String description)
+    {
+        mValue = value;
+        mDescription = description;
+    }
+
+    public static EnumSet<UpdateReason> EXTENSIONS = EnumSet.range(EXTENSION_RSP_DX_HDR_ENABLE, EXTENSION_NONE);
+
+
+    /**
+     * Many of the update reasons described in this enumeration are submitted asynchronously, since the API is
+     * non-blocking.  However, the device event listener responses are limited to just three events: Frequency, Gain,
+     * and Sample Rate.  This constant describes the three update reasons that correspond to the device events.
+     */
+    public static EnumSet<UpdateReason> ASYNC_UPDATE_RESPONSES = EnumSet.of(DEVICE_SAMPLE_RATE, TUNER_FREQUENCY_RF, TUNER_GAIN_REDUCTION);
+
+    /**
+     * Numeric value
+     */
+    public int getValue()
+    {
+        return mValue;
+    }
+
+    /**
+     * Indicates if this is an extended update reason entry.
+     */
+    public boolean isExtended()
+    {
+        return EXTENSIONS.contains(this);
+    }
+
+    /**
+     * Indicates if this update reason is one of the limited set of asynchronous update operation response types.
+     */
+    public boolean isAsyncUpdateResponse()
+    {
+        return ASYNC_UPDATE_RESPONSES.contains(this);
+    }
+
+    /**
+     * Lookup the entry from a return code
+     * @param value to lookup
+     * @return entry or UNKNOWN if the code is not recognized
+     */
+    public static UpdateReason fromValue(int value)
+    {
+        for(UpdateReason status: UpdateReason.values())
+        {
+            if(status.getValue() == value)
+            {
+                return status;
+            }
+        }
+        
+        return NONE;
+    }
+
+    /**
+     * Calculates a combined logical OR value of the non-extended update reasons.  Extended reason values will
+     * be ignored for this calculation.
+     *
+     * @param reasons to combine
+     * @return combined (logical OR) value.
+     */
+    public static int getReasons(UpdateReason ... reasons)
+    {
+        int combined = UpdateReason.NONE.getValue();
+
+        for(UpdateReason reason: reasons)
+        {
+            if(!reason.isExtended())
+            {
+                combined += reason.getValue();
+            }
+        }
+
+        return combined;
+    }
+
+    /**
+     * Calculates a combined logical OR value of the extended update reasons.  Non-extended reason values will
+     * be ignored for this calculation.
+     *
+     * @param reasons to combine
+     * @return combined (logical OR) value.
+     */
+    public static int getExtendedReasons(UpdateReason ... reasons)
+    {
+        int combined = UpdateReason.EXTENSION_NONE.getValue();
+
+        for(UpdateReason reason: reasons)
+        {
+            if(reason.isExtended())
+            {
+                combined += reason.getValue();
+            }
+        }
+
+        return combined;
+    }
+
+    @Override
+    public String toString()
+    {
+        return mDescription;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/Version.java

@@ -0,0 +1,99 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * SDRPlay API Versions
+ */
+public enum Version
+{
+    UNKNOWN(0.0f, false),
+    V3_07(3.07f, true),
+    V3_08(3.08f, true),
+    V3_09(3.09f, true),
+    V3_10(3.10f, true),
+    V3_11(3.11f, true);
+
+    private float mValue;
+    private boolean mSupported;
+    private static final Logger mLog = LoggerFactory.getLogger(Version.class);
+
+    Version(float value, boolean supported)
+    {
+        mValue = value;
+        mSupported = supported;
+    }
+
+    /**
+     * Indicates if the API version is supported by the jsdrplay library
+     */
+    public boolean isSupported()
+    {
+        return mSupported;
+    }
+
+    /**
+     * Indicates if this version is greater than or equal to the specified version.
+     * @param version to compare
+     * @return true if this version is greater than or equal to
+     */
+    public boolean gte(Version version)
+    {
+        return this.ordinal() >= version.ordinal();
+    }
+
+    /**
+     * Numeric API version/value
+     */
+    public float getVersion()
+    {
+        return mValue;
+    }
+
+    /**
+     * Lookup the version from the specified value.
+     * @param value to lookup
+     * @return version or UNKNOWN
+     */
+    public static Version fromValue(float value)
+    {
+
+        for(Version version: values())
+        {
+            if(version.mValue == value)
+            {
+                return version;
+            }
+        }
+
+        mLog.warn("Unrecognized SDRplay API version [" + value + "]");
+        return UNKNOWN;
+    }
+
+
+    @Override
+    public String toString()
+    {
+        return String.valueOf(mValue);
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/async/AsyncFuture.java

@@ -0,0 +1,227 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.async;
+
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.concurrent.locks.ReentrantLock;
+
+/**
+ * Asynchronous operation that implements the Future interface with utility methods for callback on completion, or
+ * converting to a synchronous (ie blocking) operation.
+ * @param <R> expected return type upon completion of the operation
+ */
+public class AsyncFuture<R> implements Future<R>
+{
+    private R mResult;
+    private Throwable mError;
+    private boolean mCancelled;
+    private boolean mCompleted = false;
+    private ReentrantLock mLock = new ReentrantLock();
+    private IAsyncCallback mCallback;
+
+    /**
+     * Sets the result and completes this future.
+     * @param result to apply.
+     */
+    public synchronized void setResult(R result)
+    {
+        if(mCompleted)
+        {
+            throw new IllegalStateException("Future is already completed.");
+        }
+
+        mResult = result;
+        finish();
+    }
+
+    /**
+     * Sets an error resulting from the operation and completes this future.
+     * @param error produced from the operation
+     */
+    public synchronized void setError(Throwable error)
+    {
+        if(mCompleted)
+        {
+            throw new IllegalStateException("Future is already completed.");
+        }
+
+        mError = error;
+        finish();
+    }
+
+    /**
+     * (Optional) error produced from the operation.
+     */
+    public Throwable getError()
+    {
+        return mError;
+    }
+
+    /**
+     * Indicates if this future had an error during the operation
+     */
+    public boolean hasError()
+    {
+        return mError != null;
+    }
+
+    /**
+     * Cleanup task that completes the future and notifies an optional registered callback.
+     */
+    private void finish()
+    {
+        mLock.lock();
+
+        try
+        {
+            mCompleted = true;
+
+            if(mCallback != null)
+            {
+                mCallback.complete(this);
+                mCallback = null;
+            }
+        }
+        finally
+        {
+            mLock.unlock();
+        }
+
+        notifyAll();
+    }
+
+    /**
+     * Signals a desire to cancel this future operation.
+     *
+     * Note: it is up to the implementer to monitor this cancel state.
+     * @param mayInterruptIfRunning not implemented.
+     * @return true always.
+     */
+    @Override
+    public boolean cancel(boolean mayInterruptIfRunning)
+    {
+        mCancelled = true;
+        return true;
+    }
+
+    /**
+     * Indicates if this future has been cancelled.
+     */
+    @Override
+    public boolean isCancelled()
+    {
+        return mCancelled;
+    }
+
+    /**
+     * Indicates if this future has completed.
+     */
+    @Override
+    public boolean isDone()
+    {
+        return mCompleted;
+    }
+
+    /**
+     * Blocking call to wait indefinitely for the result of the operation.
+     * @return result of the operation
+     * @throws InterruptedException if the calling thread is interrupted while waiting
+     * @throws ExecutionException if there is an error produced from the operation
+     */
+    @Override
+    public synchronized R get() throws InterruptedException, ExecutionException
+    {
+        while(!mCompleted)
+        {
+            wait();
+        }
+
+        if(mError != null)
+        {
+            throw new ExecutionException(mError);
+        }
+
+        return mResult;
+    }
+
+    /**
+     * Blocking call to synchronously get the result of the operation.
+     * @param timeout to wait
+     * @param unit for the timeout
+     * @return result once completed
+     * @throws InterruptedException if the calling thread is interrupted while waiting
+     * @throws ExecutionException if there is an error produced from the operation
+     * @throws TimeoutException if the timeout is exceeded while waiting.
+     */
+    @Override
+    public synchronized R get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException
+    {
+        if(!mCompleted)
+        {
+            wait(unit.toMillis(timeout));
+        }
+
+        if(!mCompleted)
+        {
+            throw new TimeoutException("Get timeout [" + timeout + " " + unit + "] exceeded without completion");
+        }
+
+        if(mError != null)
+        {
+            throw new ExecutionException(mError);
+        }
+
+        return mResult;
+    }
+
+    /**
+     * Registers the callback to receive the result once the operation completes.  If the operation is completed, the
+     * callback is immediately notified, otherwise the callback will be notified later.
+     * @param callback to be notified once the operation is completed.
+     */
+    public synchronized void callback(IAsyncCallback callback)
+    {
+        if(mCallback != null)
+        {
+            throw new IllegalArgumentException("Callback has been registered - only one callback is supported.");
+        }
+
+        mLock.lock();
+
+        try
+        {
+            if(mCompleted)
+            {
+                callback.complete(this);
+            }
+            else
+            {
+                mCallback = callback;
+            }
+        }
+        finally
+        {
+            mLock.unlock();
+        }
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/async/AsyncUpdateFuture.java

@@ -0,0 +1,100 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.async;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.Status;
+import io.github.dsheirer.source.tuner.sdrplay.api.UpdateReason;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.TunerSelect;
+
+/**
+ * Asynchronous future for an SDRplay API update operation.
+ */
+public class AsyncUpdateFuture extends AsyncFuture<Status>
+{
+    private TunerSelect mTunerSelect;
+    private UpdateReason mUpdateReason;
+    private UpdateReason mExpectedResponse;
+    private boolean mSubmitted;
+
+    /**
+     * Creates a to-be completed future where a successful update with return success or an unsuccessful update will
+     * return an exception.
+     * @param tunerSelect for the tuner to be updated
+     * @param updateReason of what is to be updated
+     * @param expectedResponse to be received to indicate the async operation is completed
+     */
+    public AsyncUpdateFuture(TunerSelect tunerSelect, UpdateReason updateReason, UpdateReason expectedResponse)
+    {
+        mTunerSelect = tunerSelect;
+        mUpdateReason = updateReason;
+        mExpectedResponse = expectedResponse;
+    }
+
+    /**
+     * Tuner(s) for the update
+     */
+    public TunerSelect getTunerSelect()
+    {
+        return mTunerSelect;
+    }
+
+    /**
+     * UpdateReason that is being updated
+     */
+    public UpdateReason getUpdateReason()
+    {
+        return mUpdateReason;
+    }
+
+    /**
+     * Expected response to this update operation
+     */
+    public UpdateReason getExpectedResponse()
+    {
+        return mExpectedResponse;
+    }
+
+    /**
+     * Flag to indicate if this update has been submitted and is currently awaiting results.
+     */
+    public boolean isSubmitted()
+    {
+        return mSubmitted;
+    }
+
+    /**
+     * Sets flag to indicate that this update has been submitted.
+     */
+    public void setSubmitted(boolean submitted)
+    {
+        mSubmitted = submitted;
+    }
+
+    /**
+     * Indicates if the completed async operation matches this submitted async update future
+     * @param completedAsyncUpdate to compare
+     * @return true if there is a match
+     */
+    public boolean matches(CompletedAsyncUpdate completedAsyncUpdate)
+    {
+        return getTunerSelect().equals(completedAsyncUpdate.getTunerSelect()) &&
+                getExpectedResponse().equals(completedAsyncUpdate.getUpdateReason());
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/async/CompletedAsyncUpdate.java

@@ -0,0 +1,57 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.async;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.UpdateReason;
+import io.github.dsheirer.source.tuner.sdrplay.api.device.TunerSelect;
+
+/**
+ * Completed asynchronous update operation
+ */
+public class CompletedAsyncUpdate
+{
+    private TunerSelect mTunerSelect;
+    private UpdateReason mUpdateReason;
+
+    /**
+     * Creates a completed update.
+     */
+    public CompletedAsyncUpdate(TunerSelect tunerSelect, UpdateReason updateReason)
+    {
+        mTunerSelect = tunerSelect;
+        mUpdateReason = updateReason;
+    }
+
+    /**
+     * Tuner(s) for the update
+     */
+    public TunerSelect getTunerSelect()
+    {
+        return mTunerSelect;
+    }
+
+    /**
+     * UpdateReason that is being updated
+     */
+    public UpdateReason getUpdateReason()
+    {
+        return mUpdateReason;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/async/IAsyncCallback.java

@@ -0,0 +1,32 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.async;
+
+/**
+ * Callback interface to be notified when an async future has completed or has resulted in an error
+ */
+public interface IAsyncCallback
+{
+    /**
+     * Callback method once the future is completed or produces an error.
+     * @param future that is being monitored
+     */
+    void complete(AsyncFuture future);
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/callback/CallbackFunctions.java

@@ -0,0 +1,127 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.callback;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_CallbackFnsT;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_EventCallback_t;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_StreamCallback_t;
+import java.lang.foreign.MemorySegment;
+import java.lang.foreign.MemorySession;
+
+/**
+ * Callback functions (sdrplay_api_CallbackFnsT) factory
+ */
+public class CallbackFunctions
+{
+    private DeviceEventAdapter mDeviceEventAdapter;
+    private StreamCallbackAdapter mStreamACallbackAdapter;
+    private StreamCallbackAdapter mStreamBCallbackAdapter;
+    private MemorySegment mCallbackFunctionsMemorySegment;
+
+    /**
+     * Constructs a callback functions for single-tuner use.
+     * @param memorySession for native memory allocation
+     * @param deviceEventListener for device events
+     * @param streamListener for streaming samples
+     * @param streamCallbackListener for streaming events
+     */
+    public CallbackFunctions(MemorySession memorySession, IDeviceEventListener deviceEventListener,
+                             IStreamListener streamListener, IStreamCallbackListener streamCallbackListener)
+    {
+        //Create the event callback function
+        mDeviceEventAdapter = new DeviceEventAdapter(memorySession, deviceEventListener);
+        MemorySegment eventFunction = sdrplay_api_EventCallback_t.allocate(mDeviceEventAdapter, memorySession);
+
+        //Create the stream A callback function
+        mStreamACallbackAdapter = new StreamCallbackAdapter(memorySession, streamListener, streamCallbackListener);
+        MemorySegment streamAFunction = sdrplay_api_StreamCallback_t.allocate(mStreamACallbackAdapter, memorySession);
+
+        //Create the callback functions union and populate the callback functions
+        mCallbackFunctionsMemorySegment = sdrplay_api_CallbackFnsT.allocate(memorySession);
+        sdrplay_api_CallbackFnsT.EventCbFn$set(mCallbackFunctionsMemorySegment, eventFunction.address());
+        sdrplay_api_CallbackFnsT.StreamACbFn$set(mCallbackFunctionsMemorySegment, streamAFunction.address());
+    }
+
+    /**
+     * Constructs a callback functions for dual-tuner use.
+     * @param memorySession for native memory allocation
+     * @param deviceEventListener for device events
+     * @param streamAListener for streaming samples from the master tuner
+     * @param streamBListener for streaming samples from the slave tuner
+     * @param streamCallbackListener for streaming events
+     */
+    public CallbackFunctions(MemorySession memorySession, IDeviceEventListener deviceEventListener,
+                             IStreamListener streamAListener, IStreamListener streamBListener,
+                             IStreamCallbackListener streamCallbackListener)
+    {
+        //Create the event callback function
+        mDeviceEventAdapter = new DeviceEventAdapter(memorySession, deviceEventListener);
+        MemorySegment eventFunction = sdrplay_api_EventCallback_t.allocate(mDeviceEventAdapter, memorySession);
+
+        //Create the stream A callback function
+        mStreamACallbackAdapter = new StreamCallbackAdapter(memorySession, streamAListener, streamCallbackListener);
+        MemorySegment streamAFunction = sdrplay_api_StreamCallback_t.allocate(mStreamACallbackAdapter, memorySession);
+
+        //Create the stream B callback function
+        mStreamBCallbackAdapter = new StreamCallbackAdapter(memorySession, streamBListener, streamCallbackListener);
+        MemorySegment streamBFunction = sdrplay_api_StreamCallback_t.allocate(mStreamBCallbackAdapter, memorySession);
+
+        //Create the callback functions union and populate the callback functions
+        mCallbackFunctionsMemorySegment = sdrplay_api_CallbackFnsT.allocate(memorySession);
+        sdrplay_api_CallbackFnsT.EventCbFn$set(mCallbackFunctionsMemorySegment, eventFunction.address());
+        sdrplay_api_CallbackFnsT.StreamACbFn$set(mCallbackFunctionsMemorySegment, streamAFunction.address());
+        sdrplay_api_CallbackFnsT.StreamBCbFn$set(mCallbackFunctionsMemorySegment, streamBFunction.address());
+    }
+
+    /**
+     * Foreign memory segment for the callback functions.
+     */
+    public MemorySegment getCallbackFunctionsMemorySegment()
+    {
+        return mCallbackFunctionsMemorySegment;
+    }
+
+    /**
+     * Updates the device event listener
+     * @param listener to receive device events
+     */
+    public void setDeviceEventListener(IDeviceEventListener listener)
+    {
+        mDeviceEventAdapter.setListener(listener);
+    }
+
+    /**
+     * Updates the stream A listener
+     * @param listener to receive samples for stream A
+     */
+    public void setStreamAListener(IStreamListener listener)
+    {
+        mStreamACallbackAdapter.setListener(listener);
+    }
+
+    /**
+     * Updates the stream B listener
+     * @param listener to receive samples for stream B
+     */
+    public void setStreamBListener(IStreamListener listener)
+    {
+        mStreamBCallbackAdapter.setListener(listener);
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/callback/DeviceEventAdapter.java

@@ -0,0 +1,111 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.callback;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.device.TunerSelect;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.event.EventParametersFactory;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.event.EventType;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_EventCallback_t;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_EventParamsT;
+import java.lang.foreign.MemoryAddress;
+import java.lang.foreign.MemorySegment;
+import java.lang.foreign.MemorySession;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Adapter for Device Event callbacks.  Implements foreign interface and transfers foreign memory event details to
+ * native Java and invokes the appropriate interface methods for an event listener.
+ */
+public class DeviceEventAdapter implements sdrplay_api_EventCallback_t
+{
+    private static final Logger mLog = LoggerFactory.getLogger(DeviceEventAdapter.class);
+
+    private MemorySession mMemorySession;
+    private IDeviceEventListener mDeviceEventListener;
+
+    /**
+     * Constructs an instance.
+     * @param memorySession to use in creating foreign memory segments to access foreign structures.
+     * @param listener to receive translated device events.
+     */
+    public DeviceEventAdapter(MemorySession memorySession, IDeviceEventListener listener)
+    {
+        if(memorySession == null)
+        {
+            throw new IllegalArgumentException("Resource scope must be non-null");
+        }
+
+        mMemorySession = memorySession;
+
+        setListener(listener);
+    }
+
+    /**
+     * Updates the device event listener
+     * @param listener to receive device events
+     */
+    public void setListener(IDeviceEventListener listener)
+    {
+        if(listener == null)
+        {
+            throw new IllegalArgumentException("Device event listener must be non-null");
+        }
+
+        mDeviceEventListener = listener;
+    }
+
+    @Override
+    public void apply(int eventTypeId, int tunerSelectId, MemoryAddress eventParametersPointer,
+                      MemoryAddress callbackContext)
+    {
+        MemorySegment memorySegment = sdrplay_api_EventParamsT.ofAddress(eventParametersPointer, mMemorySession);
+        EventType eventType = EventType.fromValue(eventTypeId);
+        TunerSelect tunerSelect = TunerSelect.fromValue(tunerSelectId);
+
+        switch(eventType)
+        {
+            case GAIN_CHANGE -> {
+                mDeviceEventListener.processGainChange(tunerSelect,
+                        EventParametersFactory.createGainCallbackParameters(memorySegment));
+            }
+            case POWER_OVERLOAD_CHANGE -> {
+                mDeviceEventListener.processPowerOverload(tunerSelect,
+                        EventParametersFactory.createPowerOverloadCallbackParameters(memorySegment));
+            }
+            case DEVICE_REMOVED -> {
+                mDeviceEventListener.processDeviceRemoval(tunerSelect);
+            }
+            case RSP_DUO_MODE_CHANGE -> {
+                mDeviceEventListener.processRspDuoModeChange(tunerSelect,
+                        EventParametersFactory.createRspDuoModeCallbackParameters(memorySegment));
+            }
+            case UNKNOWN -> {
+                mLog.warn("Unknown device event callback ignored.  Please contact the library developer as this may " +
+                        "indicate a change to the SDRPlay API change. Tuner:" + tunerSelect + " Event Type ID:" +
+                        eventTypeId);
+                mDeviceEventListener.processEvent(eventType, tunerSelect);
+            }
+            default -> {
+                throw new IllegalStateException("DeviceEventAdapter must be updated handle EventType." + eventType);
+            }
+        }
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/callback/IDeviceEventListener.java

@@ -0,0 +1,67 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.callback;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.device.TunerSelect;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.event.EventType;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.event.GainCallbackParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.event.PowerOverloadCallbackParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.event.RspDuoModeCallbackParameters;
+
+/**
+ * Device event listener.  Receives events for the device, impacting one or both (if equipped) tuners on the device.
+ */
+public interface IDeviceEventListener
+{
+    /**
+     * Process a device event
+     * @param eventType identifies the type of event
+     * @param tunerSelect identifies which tuner(s) are included in the event (A, B, BOTH, or NEITHER)
+     */
+    void processEvent(EventType eventType, TunerSelect tunerSelect);
+
+    /**
+     * Process a gain change event
+     * @param tunerSelect identifies which tuner(s) are included in the event (A, B, BOTH, or NEITHER)
+     * @param gainCallbackParameters containing event details
+     */
+    void processGainChange(TunerSelect tunerSelect, GainCallbackParameters gainCallbackParameters);
+
+    /**
+     * Process a power overload event
+     * @param tunerSelect identifies which tuner(s) are included in the event (A, B, BOTH, or NEITHER)
+     * @param parameters containing event details
+     */
+    void processPowerOverload(TunerSelect tunerSelect, PowerOverloadCallbackParameters parameters);
+
+    /**
+     * Process an RSP-Duo mode change event
+     * @param tunerSelect identifies which tuner(s) are included in the event (A, B, BOTH, or NEITHER)
+     * @param parameters containing event details
+     */
+    void processRspDuoModeChange(TunerSelect tunerSelect, RspDuoModeCallbackParameters parameters);
+
+    /**
+     * Process a device removed (ie unplugged) event
+     * @param tunerSelect identifies which tuner(s) are included in the event (A, B, BOTH, or NEITHER)
+     */
+    void processDeviceRemoval(TunerSelect tunerSelect);
+
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/callback/IStreamCallbackListener.java

@@ -0,0 +1,32 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.callback;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.device.TunerSelect;
+
+public interface IStreamCallbackListener
+{
+    /**
+     * Process stream callback parameters and reset value received over the stream callback interface.
+     * @param parameters to process
+     * @param reset value
+     */
+    void process(TunerSelect tunerSelect, StreamCallbackParameters parameters, int reset);
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/callback/IStreamListener.java

@@ -0,0 +1,45 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.callback;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.device.TunerSelect;
+
+/**
+ * Stream Listener interface.
+ */
+public interface IStreamListener
+{
+    /**
+     * Process samples from a single stream of I/Q samples
+     * @param xi array of Inphase samples
+     * @param xq array of Quadrature samples
+     * @param streamCallbackParameters stream callback parameters
+     * @param reset indicates if a re-initialization has occurred within the API and that local buffering should be reset
+     */
+    void processStream(short[] xi, short[] xq, StreamCallbackParameters streamCallbackParameters,
+                       boolean reset);
+
+    /**
+     * Indicates which tuner this stream listener is for.  Note: this is used to manage asynchronous Updates to ensure
+     * that submitted updates get correctly mapped and resolved in the Device update manager.
+     * @return
+     */
+    TunerSelect getTunerSelect();
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/callback/StreamCallbackAdapter.java

@@ -0,0 +1,107 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.callback;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.util.Flag;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_StreamCallback_t;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_StreamCbParamsT;
+import java.lang.foreign.MemoryAddress;
+import java.lang.foreign.MemorySegment;
+import java.lang.foreign.MemorySession;
+import java.lang.foreign.ValueLayout;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * I/Q sample stream callback adapter.  Implements the native interface and transfers the native callback data to an
+ * implementation of the Java IStreamListener interface.
+ */
+public class StreamCallbackAdapter implements sdrplay_api_StreamCallback_t
+{
+    private static final Logger mLog = LoggerFactory.getLogger(StreamCallbackAdapter.class);
+    private MemorySession mMemorySession;
+    private IStreamListener mStreamListener;
+    private IStreamCallbackListener mStreamCallbackListener;
+
+    /**
+     * Constructs an instance of the callback implementation
+     * @param memorySession for defining new foreign memory segments
+     * @param streamListener to receive transferred I/Q samples and event details
+     * @param listener to receive callback parameters
+     */
+    public StreamCallbackAdapter(MemorySession memorySession, IStreamListener streamListener,
+                                 IStreamCallbackListener listener)
+    {
+        if(memorySession == null)
+        {
+            throw new IllegalArgumentException("Resource scope must be non-null");
+        }
+
+        mMemorySession = memorySession;
+        mStreamCallbackListener = listener;
+        setListener(streamListener);
+    }
+
+    /**
+     * Updates the listener for receiving samples
+     * @param listener to receive stream samples
+     */
+    public void setListener(IStreamListener listener)
+    {
+        mStreamListener = listener;
+    }
+
+    /**
+     * Receives callback of foreign memory data, transfers it to Java, and passes to the listener.
+     * @param iSamplesPointer array foreign memory address
+     * @param qSamplesPointer array foreign memory address
+     * @param parametersPointer associated with the callback - foreign memory address
+     * @param sampleCount number of samples in each of the I and Q arrays
+     * @param reset 0 or 1, translated to a boolean
+     * @param deviceContext of the device that sourced the samples
+     */
+    @Override
+    public void apply(MemoryAddress iSamplesPointer, MemoryAddress qSamplesPointer, MemoryAddress parametersPointer,
+                      int sampleCount, int reset, MemoryAddress deviceContext)
+    {
+        if(mStreamListener != null || mStreamCallbackListener != null)
+        {
+            //Translate the callback parameters pointer to a memory segment and re-construct the parameters as a Java object
+            StreamCallbackParameters parameters = new StreamCallbackParameters(sdrplay_api_StreamCbParamsT
+                    .ofAddress(parametersPointer, mMemorySession));
+
+            if(mStreamCallbackListener != null)
+            {
+                mStreamCallbackListener.process(mStreamListener.getTunerSelect(), parameters, reset);
+            }
+
+            if(mStreamListener != null)
+            {
+                //Allocate memory segments from I/Q pointers, transfer from native to JVM array, and send to listener
+                long arrayByteSize = ValueLayout.JAVA_SHORT.byteSize() * sampleCount;
+                MemorySegment iSamples = MemorySegment.ofAddress(iSamplesPointer, arrayByteSize, mMemorySession);
+                MemorySegment qSamples = MemorySegment.ofAddress(qSamplesPointer, arrayByteSize, mMemorySession);
+                short[] i = iSamples.toArray(ValueLayout.JAVA_SHORT);
+                short[] q = qSamples.toArray(ValueLayout.JAVA_SHORT);
+                mStreamListener.processStream(i, q, parameters, Flag.evaluate(reset));
+            }
+        }
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/callback/StreamCallbackParameters.java

@@ -0,0 +1,88 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.callback;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.util.Flag;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_StreamCbParamsT;
+import java.lang.foreign.MemorySegment;
+
+/**
+ * Stream Callback Parameters structure (sdrplay_api_StreamCbParamsT)
+ */
+public class StreamCallbackParameters
+{
+    private int mFirstSampleNumber;
+    private boolean mGainReductionChanged;
+    private boolean mRfFrequencyChanged;
+    private boolean mSampleRateChanged;
+    private long mNumberSamples;
+
+    /**
+     * Constructs an instance from the foreign memory segment
+     */
+    public StreamCallbackParameters(MemorySegment memorySegment)
+    {
+        mFirstSampleNumber = sdrplay_api_StreamCbParamsT.firstSampleNum$get(memorySegment);
+        mGainReductionChanged = Flag.evaluate(sdrplay_api_StreamCbParamsT.grChanged$get(memorySegment));
+        mRfFrequencyChanged = Flag.evaluate(sdrplay_api_StreamCbParamsT.rfChanged$get(memorySegment));
+        mSampleRateChanged = Flag.evaluate(sdrplay_api_StreamCbParamsT.fsChanged$get(memorySegment));
+        mNumberSamples = sdrplay_api_StreamCbParamsT.numSamples$get(memorySegment);
+    }
+
+    /**
+     * First sample number
+     */
+    public int getFirstSampleNumber()
+    {
+        return mFirstSampleNumber;
+    }
+
+    /**
+     * Indicates if gain reduction value has changed
+     */
+    public boolean isGainReductionChanged()
+    {
+        return mGainReductionChanged;
+    }
+
+    /**
+     * Indicates if RF center frequency has changed
+     */
+    public boolean isRfFrequencyChanged()
+    {
+        return mRfFrequencyChanged;
+    }
+
+    /**
+     * Indicates if sample rate has changed
+     */
+    public boolean isSampleRateChanged()
+    {
+        return mSampleRateChanged;
+    }
+
+    /**
+     * Number of samples
+     */
+    public long getNumberSamples()
+    {
+        return mNumberSamples;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/Decimate.java

@@ -0,0 +1,84 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+/**
+ * Software decimation rates supported by the API for SDRPlay RSP devices
+ */
+public enum Decimate
+{
+    X1(1, 16),
+    X2(2, 16),
+    X4(4, 17),
+    X8(8, 17),
+    X16(16, 18),
+    X32(32, 20);
+
+    private int mValue;
+    private int mSampleSize;
+
+    /**
+     * Constructs an instance
+     * @param value
+     * @param sampleSize in bits to represent effective dynamic range.
+     */
+    Decimate(int value, int sampleSize)
+    {
+        mValue = value;
+        mSampleSize = sampleSize;
+    }
+
+    /**
+     * Decimation value.
+     * @return
+     */
+    public int getValue()
+    {
+        return mValue;
+    }
+
+    /**
+     * Sample size in bits to represent effective dynamic range for the decimation value.
+     */
+    public int getSampleSize()
+    {
+        return mSampleSize;
+    }
+
+    /**
+     * Indicates if software decimation is enabled.
+     * @return true for all values except X1.
+     */
+    public boolean isEnabled()
+    {
+        return !this.equals(X1);
+    }
+
+    @Override
+    public String toString()
+    {
+        if(this.equals(X1))
+        {
+            return "None";
+        }
+
+        return "x" + getValue();
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/Device.java

@@ -0,0 +1,696 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.Status;
+import io.github.dsheirer.source.tuner.sdrplay.api.UpdateReason;
+import io.github.dsheirer.source.tuner.sdrplay.api.async.AsyncUpdateFuture;
+import io.github.dsheirer.source.tuner.sdrplay.api.async.CompletedAsyncUpdate;
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.IDeviceEventListener;
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.IStreamCallbackListener;
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.IStreamListener;
+import io.github.dsheirer.source.tuner.sdrplay.api.callback.StreamCallbackParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.error.DebugLevel;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.composite.CompositeParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.IfMode;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.LoMode;
+import java.lang.foreign.MemoryAddress;
+import java.lang.foreign.MemorySegment;
+import java.util.Queue;
+import java.util.concurrent.ConcurrentLinkedQueue;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.locks.ReentrantLock;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Abstract device structure (sdrplay_api_DeviceT)
+ */
+public abstract class Device<T extends CompositeParameters<?,?>, R extends RspTuner<?,?>>
+{
+    private static final Logger mLog = LoggerFactory.getLogger(Device.class);
+
+    private SDRplay mSDRplay;
+    private final UpdateRequestManager mUpdateRequestManager = new UpdateRequestManager();
+    private final IDeviceStruct mDeviceStruct;
+    protected boolean mSelected = false;
+    protected boolean mInitialized = false;
+    private T mCompositeParameters;
+
+    /**
+     * Constructs an SDRPlay device from the foreign memory segment
+     * @param sdrPlay api instance that created this device
+     * @param deviceStruct to parse or access the fields of the device structure
+     */
+    public Device(SDRplay sdrPlay, IDeviceStruct deviceStruct)
+    {
+        mSDRplay = sdrPlay;
+        mDeviceStruct = deviceStruct;
+    }
+
+    /**
+     * Version specific device structure parser
+     */
+    protected IDeviceStruct getDeviceStruct()
+    {
+        return mDeviceStruct;
+    }
+
+    /**
+     * API that owns this device
+     */
+    protected SDRplay getAPI()
+    {
+        return mSDRplay;
+    }
+
+    /**
+     * Stream callback listener for parameter change events.
+     */
+    public IStreamCallbackListener getStreamCallbackListener()
+    {
+        return mUpdateRequestManager;
+    }
+
+    /**
+     * Loads the device parameters for this device.  Subsequent calls once the parameters are created are ignored.
+     * @throws SDRPlayException if the device is not selected or if there is an issue loading the parameters
+     */
+    private void loadDeviceParameters() throws SDRPlayException
+    {
+        if(selected())
+        {
+            mCompositeParameters = (T)getAPI().getCompositeParameters(getDeviceType(), getDeviceHandle());
+        }
+    }
+
+    /**
+     * Sets the debug logging level for this device.
+     * @param debugLevel to set
+     */
+    public void setDebugLevel(DebugLevel debugLevel)
+    {
+        try
+        {
+            mSDRplay.setDebugLevel(getDeviceHandle(), debugLevel);
+        }
+        catch(SDRPlayException se)
+        {
+            mLog.info("Unable to set debug level [" + debugLevel + "] for device - not selected", se);
+        }
+    }
+
+    /**
+     * Selects this device for exclusive use and loads the device composite parameters.
+     * @throws SDRPlayException if unable to select the device or if unable to load the composite parameters for use.
+     */
+    public void select() throws SDRPlayException
+    {
+        if(!selected())
+        {
+            getAPI().select(getDeviceMemorySegment());
+            mSelected = true;
+            loadDeviceParameters();
+        }
+    }
+
+    /**
+     * Indicates if this device has been selected via the SDRplay api
+     */
+    protected boolean selected()
+    {
+        return mSelected;
+    }
+
+    /**
+     * Indicates if the device is valid and ready for use
+     */
+    public boolean isValid()
+    {
+        return getDeviceStruct().isValid();
+    }
+
+    /**
+     * Releases this device from exclusive use.
+     */
+    public void release() throws SDRPlayException
+    {
+        if(selected())
+        {
+            mSelected = false;
+            getAPI().release(getDeviceMemorySegment());
+        }
+    }
+
+    /**
+     * Indicates if this device is initialized for use
+     */
+    public boolean isInitialized()
+    {
+        return mInitialized;
+    }
+
+    /**
+     * Initializes this device for single-tuner use and starts the tuner providing raw signal samples to the stream
+     * listener and device events to the event listener.
+     *
+     * Note: invoke select() to select this device for exclusive use before invoking this method.  If this device has
+     * previously been initialized, an exception is thrown.  Use uninit() to uninitialize this device and stop the
+     * sample stream and event notifications.
+     *
+     * @param eventListener to receive device event notifications
+     * @param streamListener to receive samples from stream.  Stream is from either Tuner 1 or Tuner 2 when
+     * the device is selected for single-tuner mode.
+     * @throws SDRPlayException if there is an error
+     */
+    public void initStreamA(IDeviceEventListener eventListener, IStreamListener streamListener) throws SDRPlayException
+    {
+        if(!isSelected())
+        {
+            throw new SDRPlayException("Device must be selected before it can be initialized");
+        }
+
+        if(isInitialized())
+        {
+            throw new SDRPlayException("Device has already been initialized with listeners");
+        }
+
+        getAPI().initA(Device.this, getDeviceHandle(), eventListener, streamListener);
+        mInitialized = true;
+    }
+
+    /**
+     * Initializes this device for dual-tuner stream B use and starts the tuner providing raw signal samples to the stream
+     * listener and device events to the event listener.
+     *
+     * Note: invoke select() to select this device for exclusive use before invoking this method.  If this device has
+     * previously been initialized, an exception is thrown.  Use uninit() to uninitialize this device and stop the
+     * sample stream and event notifications.
+     *
+     * @param eventListener to receive device event notifications
+     * @param streamListener to receive samples from stream.  Stream is from either Tuner 1 or Tuner 2 when
+     * the device is selected for single-tuner mode.
+     * @throws SDRPlayException if there is an error
+     */
+    public void initStreamB(IDeviceEventListener eventListener, IStreamListener streamListener) throws SDRPlayException
+    {
+        if(!isSelected())
+        {
+            throw new SDRPlayException("Device must be selected before it can be initialized");
+        }
+
+        if(isInitialized())
+        {
+            throw new SDRPlayException("Device has already been initialized with listeners");
+        }
+
+        getAPI().initB(Device.this, getDeviceHandle(), eventListener, streamListener);
+        mInitialized = true;
+    }
+
+    /**
+     * Uninitializes this device from use.  Note: call is ignored if this device hasn't been initialized
+     * @throws SDRPlayException if there is an error
+     */
+    public void uninitialize() throws SDRPlayException
+    {
+        if(isInitialized())
+        {
+            getAPI().uninit(getDeviceHandle());
+            mInitialized = false;
+        }
+        else
+        {
+            throw new SDRPlayException("Attempt to uninit a device that has not been initialized previously");
+        }
+    }
+
+    /**
+     * Updates this device after parameter change, only when the device is initialized.  If the device is not yet
+     * initialized, the update request is ignored.
+     *
+     * @throws SDRPlayException if unable to apply updates
+     */
+    public void update(TunerSelect tunerSelect, UpdateReason ... updateReasons) throws SDRPlayException
+    {
+        if(isInitialized())
+        {
+            submitUpdate(tunerSelect, updateReasons);
+        }
+    }
+
+    private String toString(UpdateReason ... updateReasons)
+    {
+        StringBuilder sb = new StringBuilder();
+
+        boolean first = true;
+
+        for(UpdateReason updateReason: updateReasons)
+        {
+            if(first)
+            {
+                sb.append("[");
+            }
+            else
+            {
+                sb.append(", ");
+            }
+
+            sb.append(updateReason.name());
+
+            first = false;
+        }
+
+        sb.append("]");
+
+        return sb.toString();
+    }
+
+    /**
+     * Asynchronous update request.  This method should only be used for Frequency, Gain and Sample Rate updates.
+     * @param tunerSelect tuner being updated
+     * @param updateReason for the parameter that is being updated
+     * @param expectedResponse that is one of Gain, Frequency, or Sample Rate.
+     * @return a future that has already been completed, or if initialized a future that will be completed.
+     */
+    protected AsyncUpdateFuture updateAsync(TunerSelect tunerSelect, UpdateReason updateReason, UpdateReason expectedResponse)
+    {
+        if(!expectedResponse.isAsyncUpdateResponse())
+        {
+            throw new IllegalArgumentException("Invalid expected response: " + expectedResponse +
+                    ". Valid values are: " + UpdateReason.ASYNC_UPDATE_RESPONSES);
+        }
+
+        if(isInitialized())
+        {
+            return mUpdateRequestManager.update(tunerSelect, updateReason, expectedResponse);
+        }
+
+        //If not initialized, return success.
+        AsyncUpdateFuture future = new AsyncUpdateFuture(tunerSelect, updateReason, expectedResponse);
+        future.setResult(Status.SUCCESS);
+        return future;
+    }
+
+    /**
+     * Submits an update request to the API.  This method is used/managed by the update request manager.
+     * @param tunerSelect for the update
+     * @param updateReasons to apply
+     * @throws SDRPlayException if there is an issue.
+     */
+    private void submitUpdate(TunerSelect tunerSelect, UpdateReason ... updateReasons) throws SDRPlayException
+    {
+        getAPI().update(Device.this, getDeviceHandle(), tunerSelect, updateReasons);
+    }
+
+    /**
+     * Acknowledge tuner power overload events
+     * @param tunerSelect identifying which tuner(s)
+     * @throws SDRPlayException on error
+     */
+    public void acknowledgePowerOverload(TunerSelect tunerSelect) throws SDRPlayException
+    {
+//        mLog.info("Acknowledging power overload message for tuner [" + tunerSelect + "]");
+
+        //There's a bug (feature?) in the API ... when you un-initialize the device, it causes a power overload event
+        // and if you acknowledge it, you get an error that the device is not initialized.
+        if(isInitialized())
+        {
+            try
+            {
+                update(tunerSelect, UpdateReason.CONTROL_OVERLOAD_MESSAGE_ACK);
+            }
+            catch(SDRPlayException se)
+            {
+                //Ignore the not initialized exception that can happen when shutting down the receiver, otherwise
+                //rethrow the exception.
+                if(se.getStatus() != Status.NOT_INITIALIZED)
+                {
+                    throw se;
+                }
+            }
+        }
+    }
+
+    /**
+     * Tuner selection.
+     * @return tuner select.  Defaults to TUNER_1 for all but the RSPduo where it is overridden for tuner 2.
+     */
+    public TunerSelect getTunerSelect()
+    {
+        return TunerSelect.TUNER_1;
+    }
+
+    /**
+     * Foreign memory segment representing this device.
+     */
+    protected MemorySegment getDeviceMemorySegment()
+    {
+        return getDeviceStruct().getDeviceMemorySegment();
+    }
+
+    /**
+     * Handle to this device.
+     *
+     * Note: this device must be selected for exclusive use before you can access this handle.
+     *
+     * @throws SDRPlayException if this method is accessed before the device has been successfully selected
+     */
+    MemoryAddress getDeviceHandle() throws SDRPlayException
+    {
+        if(!selected())
+        {
+            throw new SDRPlayException("This device must be selected for exclusive use before accessing/using the " +
+                    "device handle");
+        }
+
+        return getDeviceStruct().getDeviceHandle();
+    }
+
+    /**
+     * Tuner for this device
+     * @return tuner appropriate for the device type
+     * @throws SDRPlayException for various reasons include device not selected or API unavailable
+     */
+    public abstract R getTuner() throws SDRPlayException;
+
+    /**
+     * Composite parameters for this device
+     */
+    public T getCompositeParameters()
+    {
+        return mCompositeParameters;
+    }
+
+    /**
+     * Indicates if this device has composite parameters
+     */
+    public boolean hasCompositeParameters()
+    {
+        return mCompositeParameters != null;
+    }
+
+    /**
+     * Indicates if this device is available and has been selected for exclusive use.
+     */
+    public boolean isSelected()
+    {
+        return mSelected;
+    }
+
+    /**
+     * Device type
+     */
+    public DeviceType getDeviceType()
+    {
+        return getDeviceStruct().getDeviceType();
+    }
+
+    /**
+     * Serial number
+     */
+    public String getSerialNumber()
+    {
+        return getDeviceStruct().getSerialNumber();
+    }
+
+    /**
+     * Current sample rate
+     */
+    public double getSampleRate()
+    {
+        return getCompositeParameters().getDeviceParameters().getSamplingFrequency().getSampleRate();
+    }
+
+    public void setIfMode(IfMode ifMode)
+    {
+        getCompositeParameters().getTunerAParameters().setIfMode(ifMode);
+    }
+
+    public void setLoMode(LoMode loMode)
+    {
+        getCompositeParameters().getTunerAParameters().setLoMode(loMode);
+    }
+
+    /**
+     * Enables or disables wideband signal mode.  This should be set according to the IFMode, where IFMode.ZERO is
+     * wideband and all others are not wideband.
+     * @param enable
+     */
+    public void setWidebandSignal(boolean enable) throws SDRPlayException
+    {
+        getCompositeParameters().getControlAParameters().getDecimation().setWideBandSignal(enable);
+
+        if(isInitialized())
+        {
+            update(getTunerSelect(), UpdateReason.CONTROL_DECIMATION);
+        }
+    }
+
+    /**
+     * Sets the software-based decimation factor for the final sample rate.
+     * @param decimate value where X1 is no decimation and all others are decimation enabled values.
+     * @throws SDRPlayException if there is an error while setting decimation
+     */
+    public void setDecimation(Decimate decimate) throws SDRPlayException
+    {
+        getCompositeParameters().getControlAParameters().getDecimation().setDecimationFactor(decimate.getValue());
+        getCompositeParameters().getControlAParameters().getDecimation().setEnabled(decimate.isEnabled());
+
+        if(isInitialized())
+        {
+            update(getTunerSelect(), UpdateReason.CONTROL_DECIMATION);
+        }
+    }
+
+    @Override
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append("SDRPplay Device").append("\n");
+        sb.append("\tType: ").append(getDeviceType()).append("\n");
+        sb.append("\tSerial Number: ").append(getSerialNumber()).append("\n");
+        sb.append("\tSelected: ").append(isSelected());
+        if(hasCompositeParameters())
+        {
+            sb.append("\t").append(getCompositeParameters());
+        }
+
+        return sb.toString();
+    }
+
+    /**
+     * Thread-safe manager for asynchronous update request queue processing for an initialized RSP device.
+     *
+     * Once a device has been initialized, any changes to frequency, gain or sample rate require submitting an update
+     * request to the device to apply the parameter change(s).  However, since the API supports non-blocking operation,
+     * the operation executes asynchronously. The API supports only a single update request operation
+     * to be in-progress at a time and any overlapping update requests are met with an unsuccessful status code return
+     * from the update method.
+     */
+    class UpdateRequestManager implements IStreamCallbackListener
+    {
+        private static final long UPDATE_QUEUE_PROCESSING_INTERVAL_MS = 75;
+        private final ScheduledExecutorService mExecutorService = Executors.newSingleThreadScheduledExecutor();
+        private final Queue<AsyncUpdateFuture> mUpdateQueue = new ConcurrentLinkedQueue();
+        private final Queue<CompletedAsyncUpdate> mCompletedUpdateQueue = new ConcurrentLinkedQueue();
+        private final ReentrantLock mLock = new ReentrantLock();
+
+        /**
+         * Submits an update request for the specified tuner and update reason for queued processing.  This is a
+         * non-blocking operation and the update is performed by a thread from the thread pool.
+         * @param tunerSelect to apply the update
+         * @param updateReason to update
+         * @return an asynchronous future to monitor the progress of the update request
+         */
+        public AsyncUpdateFuture update(TunerSelect tunerSelect, UpdateReason updateReason, UpdateReason expectedResponse)
+        {
+            AsyncUpdateFuture future = new AsyncUpdateFuture(tunerSelect, updateReason, expectedResponse);
+            mUpdateQueue.add(future);
+            processQueuesImmediately();
+            return future;
+        }
+
+        /**
+         * Schedules a process queues task for immediate execution.  Non-blocking.
+         */
+        private void processQueuesImmediately()
+        {
+            processQueuesAfterDelay(0);
+        }
+
+        /**
+         * Schedules a process queues task after the delay.  Non-blocking
+         * @param delay in milliseconds, or zero for immediate.
+         */
+        private void processQueuesAfterDelay(long delay)
+        {
+            mExecutorService.schedule(() -> processQueues(), delay, TimeUnit.MILLISECONDS);
+        }
+
+        /**
+         * Processes the pending and completed update operation queues.  Submits new update requests one at a time and
+         * awaits a stream callback notification that the matching update reason has been applied/updated.  Ensures
+         * that only a single update operation is in-progress at any given time.
+         */
+        private synchronized void processQueues()
+        {
+            mLock.lock();
+
+            try
+            {
+                if(mUpdateQueue.isEmpty())
+                {
+                    //If we have no pending updates, we don't care about any completed update results
+                    mCompletedUpdateQueue.clear();
+                }
+                else
+                {
+                    boolean processing = true;
+
+                    while(processing)
+                    {
+                        processing = false;
+
+                        AsyncUpdateFuture futureUpdate = mUpdateQueue.peek();
+
+                        if(futureUpdate != null)
+                        {
+                            if(futureUpdate.isSubmitted())
+                            {
+                                //Process the completion queue
+                                while(!mCompletedUpdateQueue.isEmpty())
+                                {
+                                    CompletedAsyncUpdate completedUpdate = mCompletedUpdateQueue.poll();
+
+                                    if(completedUpdate != null)
+                                    {
+                                        if(futureUpdate.matches(completedUpdate))
+                                        {
+                                            //Clear the remaining completed updates
+                                            mCompletedUpdateQueue.clear();
+
+                                            //Remove and (successfully) complete the current future
+                                            mUpdateQueue.remove();
+                                            futureUpdate.setResult(Status.SUCCESS);
+
+                                            //Signal to immediately reprocess the queue
+                                            processing = true;
+
+                                            //Break out of the completed update queue processing
+                                            break;
+                                        }
+                                    }
+                                }
+                            }
+                            else
+                            {
+                                //Clear the completed queue and submit the update
+                                mCompletedUpdateQueue.clear();
+
+                                try
+                                {
+                                    submitUpdate(futureUpdate.getTunerSelect(), futureUpdate.getUpdateReason());
+                                    futureUpdate.setSubmitted(true);
+                                }
+                                catch(SDRPlayException se)
+                                {
+                                    futureUpdate = mUpdateQueue.poll();
+                                    futureUpdate.setError(se);
+                                    //Set continuous to true to immediately reprocess the next update
+                                    processing = true;
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            finally
+            {
+                mLock.unlock();
+            }
+
+            if(!mUpdateQueue.isEmpty())
+            {
+                processQueuesAfterDelay(UPDATE_QUEUE_PROCESSING_INTERVAL_MS);
+            }
+        }
+
+        /**
+         * Receives an update completion event.  This is a non-blocking operation since this method will be invoked
+         * by the stream callback thread, and we don't want to impact the delivery of streaming samples or events.
+         *
+         * @param tunerSelect tuner that was updated
+         * @param updateReason for what was updated
+         */
+        public void completed(TunerSelect tunerSelect, UpdateReason updateReason)
+        {
+            mCompletedUpdateQueue.add(new CompletedAsyncUpdate(tunerSelect, updateReason));
+            mExecutorService.schedule(this::processQueues, 0, TimeUnit.MILLISECONDS);
+        }
+
+        /**
+         * Resets the update queue.
+         */
+        public void reset()
+        {
+            mLock.lock();
+
+            try
+            {
+                while(!mUpdateQueue.isEmpty())
+                {
+                    AsyncUpdateFuture future = mUpdateQueue.poll();
+                    future.setResult(Status.UNKNOWN);
+                }
+            }
+            finally
+            {
+                mLock.unlock();
+            }
+        }
+
+        /**
+         * Implements the IStreamCallbackListener interface to receive change notifications from update requests.
+         * @param parameters to process
+         * @param reset value with flags
+         */
+        @Override
+        public void process(TunerSelect tunerSelect, StreamCallbackParameters parameters, int reset)
+        {
+            if(parameters.isSampleRateChanged())
+            {
+                completed(tunerSelect, UpdateReason.DEVICE_SAMPLE_RATE);
+            }
+            if(parameters.isRfFrequencyChanged())
+            {
+                completed(tunerSelect, UpdateReason.TUNER_FREQUENCY_RF);
+            }
+            if(parameters.isGainReductionChanged())
+            {
+                completed(tunerSelect, UpdateReason.TUNER_GAIN_REDUCTION);
+            }
+        }
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/DeviceFactory.java

@@ -0,0 +1,164 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.Version;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_DeviceT;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_h;
+import java.lang.foreign.MemorySegment;
+import java.lang.foreign.SegmentAllocator;
+import java.util.ArrayList;
+import java.util.List;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Factory methods for creating new RSP Device instances
+ */
+public class DeviceFactory
+{
+    private static final Logger mLog = LoggerFactory.getLogger(DeviceFactory.class);
+
+    /**
+     * Creates a foreign memory segment for a DeviceT array, appropriate for the specified version.
+     * @param version value
+     * @param segmentAllocator to allocate the foreign memory
+     * @return devices array
+     */
+    public static MemorySegment createDeviceArray(Version version, SegmentAllocator segmentAllocator)
+    {
+        if(version.gte(Version.V3_08))
+        {
+            return sdrplay_api_DeviceT.allocateArray(sdrplay_api_h.SDRPLAY_MAX_DEVICES(), segmentAllocator);
+        }
+        else if(version == Version.V3_07)
+        {
+            return sdrplay_api_DeviceT.allocateArray(sdrplay_api_h.SDRPLAY_MAX_DEVICES(), segmentAllocator);
+        }
+
+        throw new IllegalArgumentException("Unrecognized version: " + version);
+    }
+
+    /**
+     * Parses device information from a list of device structures
+     * @param deviceStructs representing devices to parse
+     * @return a list of device infos
+     */
+    public static List<DeviceInfo> parseDeviceInfos(List<IDeviceStruct> deviceStructs)
+    {
+        List<DeviceInfo> deviceInfos = new ArrayList<>();
+
+        for(IDeviceStruct deviceStruct: deviceStructs)
+        {
+            deviceInfos.add(new DeviceInfo(deviceStruct));
+        }
+
+        return deviceInfos;
+    }
+
+    /**
+     * Parses device information from a memory segment containing an array of device structures.
+     * @param version of the API
+     * @param devicesArray memory segment
+     * @param count of device structures in the devicesArray.
+     * @return a list of device infos
+     * @throws exception if version is unrecognized or unsupported
+     */
+    public static List<IDeviceStruct> parseDeviceStructs(Version version, MemorySegment devicesArray, int count)
+            throws SDRPlayException
+    {
+        List<IDeviceStruct> deviceStructs = new ArrayList<>();
+
+        if(version.gte(Version.V3_08))
+        {
+            devicesArray.elements(sdrplay_api_DeviceT.$LAYOUT())
+                    .limit(count).forEach(memorySegment ->
+                            deviceStructs.add(DeviceFactory.createDeviceStruct(version, memorySegment)));
+        }
+        else if(version == Version.V3_07)
+        {
+            devicesArray.elements(sdrplay_api_DeviceT.$LAYOUT()).limit(count).forEach(memorySegment ->
+            {
+                deviceStructs.add(DeviceFactory.createDeviceStruct(version, memorySegment));
+            });
+        }
+        else
+        {
+            throw new SDRPlayException("Unrecognized version: " + version);
+        }
+
+        return deviceStructs;
+    }
+
+    /**
+     * Creates an SDRplay device from the foreign memory Device instance.
+     * @param sdrPlay for device callback support
+     * @param deviceMemorySegment instance for the device
+     * @return correctly typed device
+     */
+    public static Device createDevice(SDRplay sdrPlay, IDeviceStruct deviceStruct)
+    {
+        switch(deviceStruct.getDeviceType())
+        {
+            case RSP1 -> {
+                return new Rsp1Device(sdrPlay, deviceStruct);
+            }
+            case RSP1A -> {
+                return new Rsp1aDevice(sdrPlay, deviceStruct);
+            }
+            case RSP2 -> {
+                return new Rsp2Device(sdrPlay, deviceStruct);
+            }
+            case RSPduo -> {
+                return new RspDuoDevice(sdrPlay, deviceStruct);
+            }
+            case RSPdx -> {
+                return new RspDxDevice(sdrPlay, deviceStruct);
+            }
+            default -> {
+                return new UnknownDevice(sdrPlay, deviceStruct);
+            }
+        }
+    }
+
+    /**
+     * Creates a device structure parser for the specified API version
+     * @param version to create
+     * @param deviceMemorySegment for the device
+     * @return device structure
+     */
+    private static IDeviceStruct createDeviceStruct(Version version, MemorySegment deviceMemorySegment)
+    {
+        if(version == Version.V3_07)
+        {
+            return new DeviceStruct_v3_07(deviceMemorySegment);
+        }
+        else if(version.gte(Version.V3_08))
+        {
+            return new DeviceStruct_v3_08(deviceMemorySegment);
+        }
+        else
+        {
+            throw new IllegalArgumentException("Unsupported version: " + version);
+        }
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/DeviceInfo.java

@@ -0,0 +1,140 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.DeviceSelectionMode;
+import java.util.Objects;
+import org.apache.commons.lang3.Validate;
+
+/**
+ * RSP device information to support device selection.
+ */
+public class DeviceInfo
+{
+    private DeviceSelectionMode mDeviceSelectionMode = DeviceSelectionMode.SINGLE_TUNER_1;
+    private DeviceType mDeviceType;
+    private String mSerialNumber;
+
+    /**
+     * Constructs an instance
+     * @param deviceType of the RSP device
+     * @param serialNumber for the device
+     */
+    public DeviceInfo(DeviceType deviceType, String serialNumber)
+    {
+        Validate.notNull(deviceType, "Device type cannot be null");
+        Validate.notNull(serialNumber, "Device serial number cannot be null");
+
+        mDeviceType = deviceType;
+        mSerialNumber = serialNumber;
+    }
+
+    /**
+     * Alternate constructor where we get the parameters from a device structure.
+     * @param deviceStruct containing device type and serial number values.
+     */
+    public DeviceInfo(IDeviceStruct deviceStruct)
+    {
+        this(deviceStruct.getDeviceType(), deviceStruct.getSerialNumber());
+    }
+
+    /**
+     * Device type for this RSP device
+     * @return type
+     */
+    public DeviceType getDeviceType()
+    {
+        return mDeviceType;
+    }
+
+    /**
+     * Serial number for this RSP device
+     * @return serial number
+     */
+    public String getSerialNumber()
+    {
+        return mSerialNumber;
+    }
+
+    /**
+     * Device selection mode for this RSP device
+     * @return device selection mode where single tuner 1 is default
+     */
+    public DeviceSelectionMode getDeviceSelectionMode()
+    {
+        return mDeviceSelectionMode;
+    }
+
+    /**
+     * Sets the device selection mode.  This should be left as default of single tuner 1 unless this device is an RSPduo.
+     * @param deviceSelectionMode to use for this device.
+     */
+    public void setDeviceSelectionMode(DeviceSelectionMode deviceSelectionMode)
+    {
+        Validate.notNull(deviceSelectionMode, "Device selection mode cannot be null");
+        mDeviceSelectionMode = deviceSelectionMode;
+    }
+
+    /**
+     * Clones this instance
+     * @return deep copy.
+     */
+    public DeviceInfo clone()
+    {
+        return new DeviceInfo(mDeviceType, mSerialNumber);
+    }
+
+    /**
+     * Indicates if this device type and serial number matches the details of the device structure.
+     * @param deviceStruct to compare
+     * @return true if the device type and serial number match.
+     */
+    public boolean matches(IDeviceStruct deviceStruct)
+    {
+        return deviceStruct != null && getDeviceType().equals(deviceStruct.getDeviceType()) && getSerialNumber().equals(deviceStruct.getSerialNumber());
+    }
+
+    @Override
+    public String toString()
+    {
+        return "Device: " + getDeviceType() + " Serial Number: " + getSerialNumber() + " Selection Mode: " + getDeviceSelectionMode();
+    }
+
+    @Override
+    public boolean equals(Object o)
+    {
+        if(this == o)
+        {
+            return true;
+        }
+        if(o == null || getClass() != o.getClass())
+        {
+            return false;
+        }
+        DeviceInfo that = (DeviceInfo) o;
+        return mDeviceSelectionMode == that.mDeviceSelectionMode && mDeviceType == that.mDeviceType && mSerialNumber.equals(that.mSerialNumber);
+    }
+
+    @Override
+    public int hashCode()
+    {
+        return Objects.hash(mDeviceSelectionMode, mDeviceType, mSerialNumber);
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/DeviceStruct_v3_07.java

@@ -0,0 +1,99 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_DeviceT;
+import java.lang.foreign.MemoryAddress;
+import java.lang.foreign.MemorySegment;
+
+/**
+ * sdrplay_api_DeviceT structure parser for API version 3.07
+ */
+public class DeviceStruct_v3_07 implements IDeviceStruct
+{
+    private MemorySegment mDeviceMemorySegment;
+    private DeviceType mDeviceType;
+    private String mSerialNumber;
+
+    /**
+     * Constructs an instance
+     * @param deviceMemorySegment of foreign memory
+     */
+    public DeviceStruct_v3_07(MemorySegment deviceMemorySegment)
+    {
+        mDeviceMemorySegment = deviceMemorySegment;
+        mDeviceType = DeviceType.fromValue(0xFF & sdrplay_api_DeviceT.hwVer$get(mDeviceMemorySegment));
+        MemorySegment serialSegment = sdrplay_api_DeviceT.SerNo$slice(mDeviceMemorySegment);
+        mSerialNumber = serialSegment.getUtf8String(0);
+    }
+
+    @Override public MemorySegment getDeviceMemorySegment()
+    {
+        return mDeviceMemorySegment;
+    }
+
+    @Override public String getSerialNumber()
+    {
+        return mSerialNumber;
+    }
+
+    @Override public DeviceType getDeviceType()
+    {
+        return mDeviceType;
+    }
+
+    @Override public TunerSelect getTunerSelect()
+    {
+        return TunerSelect.fromValue(sdrplay_api_DeviceT.tuner$get(getDeviceMemorySegment()));
+    }
+
+    @Override public RspDuoMode getRspDuoMode()
+    {
+        return RspDuoMode.fromValue(sdrplay_api_DeviceT.rspDuoMode$get(getDeviceMemorySegment()));
+    }
+
+    @Override
+    public void setRspDuoMode(RspDuoMode mode)
+    {
+        sdrplay_api_DeviceT.rspDuoMode$set(getDeviceMemorySegment(), mode.getValue());
+    }
+
+    @Override public boolean isValid()
+    {
+        //Always returns true for version 3.07
+        return true;
+    }
+
+    @Override public double getRspDuoSampleFrequency()
+    {
+        return sdrplay_api_DeviceT.rspDuoSampleFreq$get(getDeviceMemorySegment());
+    }
+
+    @Override
+    public void setRspDuoSampleFrequency(double frequency)
+    {
+        sdrplay_api_DeviceT.rspDuoSampleFreq$set(getDeviceMemorySegment(), frequency);
+    }
+
+    @Override public MemoryAddress getDeviceHandle()
+    {
+        return sdrplay_api_DeviceT.dev$get(getDeviceMemorySegment());
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/DeviceStruct_v3_08.java

@@ -0,0 +1,99 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_08.sdrplay_api_DeviceT;
+import java.lang.foreign.MemoryAddress;
+import java.lang.foreign.MemorySegment;
+
+/**
+ * sdrplay_api_DeviceT structure parser for API version 3.07
+ */
+public class DeviceStruct_v3_08 implements IDeviceStruct
+{
+    private MemorySegment mDeviceMemorySegment;
+    private DeviceType mDeviceType;
+    private String mSerialNumber;
+
+    /**
+     * Constructs an instance
+     * @param deviceMemorySegment of foreign memory
+     */
+    public DeviceStruct_v3_08(MemorySegment deviceMemorySegment)
+    {
+        mDeviceMemorySegment = deviceMemorySegment;
+        mDeviceType = DeviceType.fromValue(0xFF & sdrplay_api_DeviceT.hwVer$get(mDeviceMemorySegment));
+        MemorySegment serialSegment = sdrplay_api_DeviceT.SerNo$slice(mDeviceMemorySegment);
+        mSerialNumber = serialSegment.getUtf8String(0);
+    }
+
+    @Override public MemorySegment getDeviceMemorySegment()
+    {
+        return mDeviceMemorySegment;
+    }
+
+    @Override public String getSerialNumber()
+    {
+        return mSerialNumber;
+    }
+
+    @Override public DeviceType getDeviceType()
+    {
+        return mDeviceType;
+    }
+
+    @Override public TunerSelect getTunerSelect()
+    {
+        return TunerSelect.fromValue(sdrplay_api_DeviceT.tuner$get(getDeviceMemorySegment()));
+    }
+
+    @Override public RspDuoMode getRspDuoMode()
+    {
+        return RspDuoMode.fromValue(sdrplay_api_DeviceT.rspDuoMode$get(getDeviceMemorySegment()));
+    }
+
+    @Override
+    public void setRspDuoMode(RspDuoMode mode)
+    {
+        sdrplay_api_DeviceT.rspDuoMode$set(getDeviceMemorySegment(), mode.getValue());
+    }
+
+    @Override public boolean isValid()
+    {
+        //Always returns true for version 3.07
+        return true;
+    }
+
+    @Override public double getRspDuoSampleFrequency()
+    {
+        return sdrplay_api_DeviceT.rspDuoSampleFreq$get(getDeviceMemorySegment());
+    }
+
+    @Override
+    public void setRspDuoSampleFrequency(double frequency)
+    {
+        sdrplay_api_DeviceT.rspDuoSampleFreq$set(getDeviceMemorySegment(), frequency);
+    }
+
+    @Override public MemoryAddress getDeviceHandle()
+    {
+        return sdrplay_api_DeviceT.dev$get(getDeviceMemorySegment());
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/DeviceType.java

@@ -0,0 +1,76 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_h;
+
+/**
+ * RSP Device type
+ */
+public enum DeviceType
+{
+    RSP1(sdrplay_api_h.SDRPLAY_RSP1_ID(), "RSP1"),
+    RSP1A(sdrplay_api_h.SDRPLAY_RSP1A_ID(), "RSP1A"),
+    RSP2(sdrplay_api_h.SDRPLAY_RSP2_ID(), "RSP2"),
+    RSPduo(sdrplay_api_h.SDRPLAY_RSPduo_ID(), "RSPduo"),
+    RSPdx(sdrplay_api_h.SDRPLAY_RSPdx_ID(), "RSPdx"),
+    UNKNOWN(Integer.MIN_VALUE, "UNKNOWN");
+
+    private int mValue;
+    private String mDescription;
+
+    DeviceType(int value, String description)
+    {
+        mValue = value;
+        mDescription = description;
+    }
+
+    /**
+     * Numeric value
+     */
+    public int getValue()
+    {
+        return mValue;
+    }
+
+    /**
+     * Lookup the entry from a return code
+     * @param value to lookup
+     * @return entry or UNKNOWN if the code is not recognized
+     */
+    public static DeviceType fromValue(int value)
+    {
+        for(DeviceType status: DeviceType.values())
+        {
+            if(status.getValue() == value)
+            {
+                return status;
+            }
+        }
+
+        return UNKNOWN;
+    }
+
+    @Override
+    public String toString()
+    {
+        return mDescription;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/IDeviceStruct.java

@@ -0,0 +1,81 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import java.lang.foreign.MemoryAddress;
+import java.lang.foreign.MemorySegment;
+
+/**
+ * Interface for parsing and accessing the fields of the sdrplay_api_DeviceT structure across
+ * various versions.
+ */
+public interface IDeviceStruct
+{
+    /**
+     * Foreign memory segment for this device structure
+     */
+    MemorySegment getDeviceMemorySegment();
+
+    /**
+     * Serial number of the device
+     */
+    String getSerialNumber();
+
+    /**
+     * Indicates the device type, or model of RSP
+     */
+    DeviceType getDeviceType();
+
+    /**
+     * Indicates single, dual, or master/slave mode for the tuner.
+     */
+    TunerSelect getTunerSelect();
+
+    /**
+     * RSPduo mode
+     */
+    RspDuoMode getRspDuoMode();
+
+    /**
+     * Sets the RSPduo mode
+     * @param mode to set
+     */
+    void setRspDuoMode(RspDuoMode mode);
+
+    /**
+     * Indicates if the device is valid and ready for use (V3.08 and later)
+     */
+    boolean isValid();
+
+    /**
+     * Sample frequency/rate for the RSPduo when in master/slave mode
+     */
+    double getRspDuoSampleFrequency();
+
+    /**
+     * Sets the sample frequency/rate for the RSPduo when in master (only) mode.
+     */
+    void setRspDuoSampleFrequency(double frequency);
+
+    /**
+     * Device handle.  Note this is only available if the device has been selected.
+     */
+    MemoryAddress getDeviceHandle();
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/Rsp1Device.java

@@ -0,0 +1,61 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.composite.Rsp1CompositeParameters;
+
+/**
+ * RSP1 Device
+ */
+public class Rsp1Device extends Device<Rsp1CompositeParameters, Rsp1Tuner>
+{
+    private Rsp1Tuner mTuner1;
+
+    /**
+     * Constructs an SDRPlay RSP1 device from the foreign memory segment
+     *
+     * @param sdrPlay api instance that created this device
+     * @param deviceStruct parser
+     */
+    Rsp1Device(SDRplay sdrPlay, IDeviceStruct deviceStruct)
+    {
+        super(sdrPlay, deviceStruct);
+    }
+
+    @Override
+    public Rsp1Tuner getTuner() throws SDRPlayException
+    {
+        if(!isSelected())
+        {
+            throw new SDRPlayException("Device must be selected before accessing the tuner");
+        }
+
+        if(mTuner1 == null)
+        {
+            mTuner1 = new Rsp1Tuner(Rsp1Device.this, getAPI(), getTunerSelect(),
+                    getCompositeParameters().getDeviceParameters(), getCompositeParameters().getTunerAParameters(),
+                    getCompositeParameters().getControlAParameters());
+        }
+
+        return mTuner1;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/Rsp1Tuner.java

@@ -0,0 +1,46 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.control.ControlParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.device.Rsp1DeviceParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.Rsp1TunerParameters;
+
+/**
+ * RSP1 Tuner
+ */
+public class Rsp1Tuner extends RspTuner<Rsp1DeviceParameters, Rsp1TunerParameters>
+{
+    /**
+     * Constructs an instance
+     * @param device parent for this tuner
+     * @param sdrplay api
+     * @param tunerSelect to specify which tuner
+     * @param deviceParameters for this device
+     * @param tunerParameters for this tuner
+     * @param controlParameters for this device
+     */
+    public Rsp1Tuner(Device device, SDRplay sdrplay, TunerSelect tunerSelect, Rsp1DeviceParameters deviceParameters,
+                     Rsp1TunerParameters tunerParameters, ControlParameters controlParameters)
+    {
+        super(device, sdrplay, tunerSelect, deviceParameters, tunerParameters, controlParameters);
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/Rsp1aDevice.java

@@ -0,0 +1,61 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.composite.Rsp1aCompositeParameters;
+
+/**
+ * RSP1A Device
+ */
+public class Rsp1aDevice extends Device<Rsp1aCompositeParameters, Rsp1aTuner>
+{
+    private Rsp1aTuner mTuner1;
+
+    /**
+     * Constructs an SDRPlay RSP1A device from the foreign memory segment
+     *
+     * @param sdrPlay api instance that created this device
+     * @param deviceStruct parser
+     */
+    Rsp1aDevice(SDRplay sdrPlay, IDeviceStruct deviceStruct)
+    {
+        super(sdrPlay, deviceStruct);
+    }
+
+    @Override
+    public Rsp1aTuner getTuner() throws SDRPlayException
+    {
+        if(!isSelected())
+        {
+            throw new SDRPlayException("Device must be selected before accessing the tuner");
+        }
+
+        if(mTuner1 == null)
+        {
+            mTuner1 = new Rsp1aTuner(Rsp1aDevice.this, getAPI(), getTunerSelect(),
+                    getCompositeParameters().getDeviceParameters(), getCompositeParameters().getTunerAParameters(),
+                    getCompositeParameters().getControlAParameters());
+        }
+
+        return mTuner1;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/Rsp1aTuner.java

@@ -0,0 +1,105 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.UpdateReason;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.control.ControlParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.device.Rsp1aDeviceParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.Rsp1aTunerParameters;
+
+/**
+ * RSP1A Tuner
+ */
+public class Rsp1aTuner extends RspTuner<Rsp1aDeviceParameters, Rsp1aTunerParameters>
+{
+    /**
+     * Constructs an instance
+     * @param device parent for this tuner
+     * @param sdrplay api
+     * @param tunerSelect to specify which tuner
+     * @param deviceParameters for this device
+     * @param tunerParameters for this tuner
+     * @param controlParameters for this device
+     */
+    public Rsp1aTuner(Device device, SDRplay sdrplay, TunerSelect tunerSelect, Rsp1aDeviceParameters deviceParameters,
+                      Rsp1aTunerParameters tunerParameters, ControlParameters controlParameters)
+    {
+        super(device, sdrplay, tunerSelect, deviceParameters, tunerParameters, controlParameters);
+    }
+
+    /**
+     * Indicates if the RF notch is enabled
+     */
+    public boolean isRfNotch()
+    {
+        return getDeviceParameters().isRFNotch();
+    }
+
+    /**
+     * Enables or disables the RF notch
+     * @param enable setting
+     * @throws SDRPlayException if there is an error
+     */
+    public void setRfNotch(boolean enable) throws SDRPlayException
+    {
+        getDeviceParameters().setRFNotch(enable);
+        update(UpdateReason.RSP1A_RF_NOTCH_CONTROL);
+    }
+
+    /**
+     * Indicates if the RF DAB notch is enabled
+     */
+    public boolean isRfDabNotch()
+    {
+        return getDeviceParameters().isRfDabNotch();
+    }
+
+    /**
+     * Enables or disables the RF DAB notch
+     * @param enable value
+     * @throws SDRPlayException if there is an error
+     */
+    public void setRfDabNotch(boolean enable) throws SDRPlayException
+    {
+        getDeviceParameters().setRfDabNotch(enable);
+        update(UpdateReason.RSP1A_RF_DAB_NOTCH_CONTROL);
+    }
+
+    /**
+     * Indicates if the Bias-T is enabled
+     */
+    public boolean isBiasT()
+    {
+        return getTunerParameters().isBiasT();
+    }
+
+    /**
+     * Enables or disables the Bias-T
+     * @param enable value
+     * @throws SDRPlayException if there is an error
+     */
+    public void setBiasT(boolean enable) throws SDRPlayException
+    {
+        getTunerParameters().setBiasT(enable);
+        update(UpdateReason.RSP1A_BIAS_T_CONTROL);
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/Rsp2Device.java

@@ -0,0 +1,61 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.composite.Rsp2CompositeParameters;
+
+/**
+ * RSP2 Device
+ */
+public class Rsp2Device extends Device<Rsp2CompositeParameters, Rsp2Tuner>
+{
+    private Rsp2Tuner mTuner1;
+
+    /**
+     * Constructs an SDRPlay RSP2 device from the foreign memory segment
+     *
+     * @param sdrPlay api instance that created this device
+     * @param deviceStruct parser
+     */
+    Rsp2Device(SDRplay sdrPlay, IDeviceStruct deviceStruct)
+    {
+        super(sdrPlay, deviceStruct);
+    }
+
+    @Override
+    public Rsp2Tuner getTuner() throws SDRPlayException
+    {
+        if(!isSelected())
+        {
+            throw new SDRPlayException("Device must be selected before accessing the tuner");
+        }
+
+        if(mTuner1 == null)
+        {
+            mTuner1 = new Rsp2Tuner(Rsp2Device.this, getAPI(), getTunerSelect(),
+                    getCompositeParameters().getDeviceParameters(), getCompositeParameters().getTunerAParameters(),
+                    getCompositeParameters().getControlAParameters());
+        }
+
+        return mTuner1;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/Rsp2Tuner.java

@@ -0,0 +1,145 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.UpdateReason;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.control.ControlParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.device.Rsp2DeviceParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.Rsp2AmPort;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.Rsp2Antenna;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.Rsp2TunerParameters;
+
+/**
+ * RSP2 Tuner
+ */
+public class Rsp2Tuner extends RspTuner<Rsp2DeviceParameters, Rsp2TunerParameters>
+{
+    /**
+     * Constructs an instance
+     * @param device parent for this tuner
+     * @param sdrplay api
+     * @param tunerSelect to specify which tuner
+     * @param deviceParameters for this device
+     * @param tunerParameters for this tuner
+     * @param controlParameters for this device
+     */
+    public Rsp2Tuner(Device device, SDRplay sdrplay, TunerSelect tunerSelect, Rsp2DeviceParameters deviceParameters,
+                     Rsp2TunerParameters tunerParameters, ControlParameters controlParameters)
+    {
+        super(device, sdrplay, tunerSelect, deviceParameters, tunerParameters, controlParameters);
+    }
+
+    /**
+     * Indicates if the external reference output is enabled.
+     */
+    public boolean isExternalReferenceOutput()
+    {
+        return getDeviceParameters().isExternalReferenceOutput();
+    }
+
+    /**
+     * Enables or disables the external reference output
+     * @param enable value
+     * @throws SDRPlayException if there is an error
+     */
+    public void setExternalReferenceOutput(boolean enable) throws SDRPlayException
+    {
+        getDeviceParameters().setExternalReferenceOutput(enable);
+        update(UpdateReason.RSP2_EXT_REF_CONTROL);
+    }
+
+    /**
+     * Indicates if the Bias-T is enabled
+     */
+    public boolean isBiasT()
+    {
+        return getTunerParameters().isBiasT();
+    }
+
+    /**
+     * Enables or disables the Bias-T
+     * @param enable value
+     * @throws SDRPlayException if there is an error
+     */
+    public void setBiasT(boolean enable) throws SDRPlayException
+    {
+        getTunerParameters().setBiasT(enable);
+        update(UpdateReason.RSP2_BIAS_T_CONTROL);
+    }
+
+    /**
+     * Indicates if the RF notch is enabled
+     */
+    public boolean isRfNotch()
+    {
+        return getTunerParameters().isRfNotch();
+    }
+
+    /**
+     * Enables or disables the RF notch
+     * @param enable setting
+     * @throws SDRPlayException if there is an error
+     */
+    public void setRfNotch(boolean enable) throws SDRPlayException
+    {
+        getTunerParameters().setRfNotch(enable);
+        update(UpdateReason.RSP2_RF_NOTCH_CONTROL);
+    }
+
+    /**
+     * AM port selection
+     */
+    public Rsp2AmPort getAmPort()
+    {
+        return getTunerParameters().getAmPort();
+    }
+
+    /**
+     * Sets the AM port
+     * @param port to select
+     * @throws SDRPlayException if there is an error
+     */
+    public void setAmPort(Rsp2AmPort port) throws SDRPlayException
+    {
+        getTunerParameters().setAmPort(port);
+        update(UpdateReason.RSP2_AM_PORT_SELECT);
+    }
+
+    /**
+     * Antenna selection
+     */
+    public Rsp2Antenna getAntenna()
+    {
+        return getTunerParameters().getAntenna();
+    }
+
+    /**
+     * Sets the antenna
+     * @param antenna to select
+     * @throws SDRPlayException if there is an error
+     */
+    public void setAntenna(Rsp2Antenna antenna) throws SDRPlayException
+    {
+        getTunerParameters().setAntenna(antenna);
+        update(UpdateReason.RSP2_ANTENNA_CONTROL);
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/RspDuoDevice.java

@@ -0,0 +1,212 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.UpdateReason;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.composite.RspDuoCompositeParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.IfMode;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.LoMode;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_DeviceT;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * RSPduo Device
+ */
+public class RspDuoDevice extends Device<RspDuoCompositeParameters, RspDuoTuner>
+{
+    private static final Logger mLog = LoggerFactory.getLogger(RspDuoDevice.class);
+
+    private RspDuoTuner mTuner;
+
+    /**
+     * Constructs an SDRPlay RSPduo device from the foreign memory segment
+     *
+     * @param sdrPlay api instance that created this device
+     * @param deviceStruct parser
+     */
+    RspDuoDevice(SDRplay sdrPlay, IDeviceStruct deviceStruct)
+    {
+        super(sdrPlay, deviceStruct);
+    }
+
+    /**
+     * Tuner
+     * @return tuner
+     * @throws SDRPlayException if there is an error
+     */
+    @Override
+    public RspDuoTuner getTuner() throws SDRPlayException
+    {
+        if(!isSelected())
+        {
+            throw new SDRPlayException("Device must be selected before accessing the tuner");
+        }
+
+        if(mTuner == null)
+        {
+            if(getTunerSelect().equals(TunerSelect.TUNER_1))
+            {
+                mTuner = new RspDuoTuner1(RspDuoDevice.this, getAPI(),
+                        getCompositeParameters().getDeviceParameters(), getCompositeParameters().getTunerAParameters(),
+                        getCompositeParameters().getControlAParameters());
+            }
+            else
+            {
+                mTuner = new RspDuoTuner2(RspDuoDevice.this, getAPI(),
+                        getCompositeParameters().getDeviceParameters(), getCompositeParameters().getTunerBParameters(),
+                        getCompositeParameters().getControlBParameters());
+            }
+        }
+
+        return mTuner;
+    }
+
+    /**
+     * Selected tuner(s).
+     */
+    @Override
+    public TunerSelect getTunerSelect()
+    {
+        return TunerSelect.fromValue(sdrplay_api_DeviceT.tuner$get(getDeviceMemorySegment()));
+    }
+
+    /**
+     * Sets the selected tuner(s)
+     */
+    public void setTunerSelect(TunerSelect tunerSelect)
+    {
+        sdrplay_api_DeviceT.tuner$set(getDeviceMemorySegment(), tunerSelect.getValue());
+    }
+
+    /**
+     * RSPduo mode
+     */
+    public RspDuoMode getRspDuoMode()
+    {
+        return getDeviceStruct().getRspDuoMode();
+    }
+
+    /**
+     * Sets RSPduo mode.  Note this must be set before selecting the device for use.
+     * @param mode to set
+     * @throws SDRPlayException if the device has already been selected
+     */
+    public void setRspDuoMode(RspDuoMode mode) throws SDRPlayException
+    {
+        if(isSelected())
+        {
+            throw new SDRPlayException("RSPduo device is already selected.  Mode can only be set/changed before the " +
+                    "device is selected for use.");
+        }
+
+        getDeviceStruct().setRspDuoMode(mode);
+    }
+
+    /**
+     * Sample rate when in master/slave mode
+     */
+    public double getRspDuoSampleFrequency()
+    {
+        return getDeviceStruct().getRspDuoSampleFrequency();
+    }
+
+    /**
+     * Sets the sample rate when the device is configured for master mode.
+     * @param frequency
+     */
+    public void setRspDuoSampleFrequency(double frequency) throws SDRPlayException
+    {
+        if(!getRspDuoMode().equals(RspDuoMode.MASTER))
+        {
+            throw new SDRPlayException("This method can only be used to set the overall sample rate when the RSPduo " +
+                    "device is configured for master mode.");
+        }
+
+        getDeviceStruct().setRspDuoSampleFrequency(frequency);
+    }
+
+    /**
+     * Sets the decimation factor for the final sample rate.
+     * @param decimation as an integer multiple of two (e.g. 1, 2, 4, 8)
+     * @throws SDRPlayException if there is an error while setting decimation
+     */
+    @Override
+    public void setDecimation(Decimate decimation) throws SDRPlayException
+    {
+        if(getTunerSelect() == TunerSelect.TUNER_1)
+        {
+            getCompositeParameters().getControlAParameters().getDecimation().setDecimationFactor(decimation.getValue());
+            getCompositeParameters().getControlAParameters().getDecimation().setEnabled(decimation.isEnabled());
+            update(getTunerSelect(), UpdateReason.CONTROL_DECIMATION);
+        }
+        else if(getTunerSelect() == TunerSelect.TUNER_2)
+        {
+            getCompositeParameters().getControlBParameters().getDecimation().setDecimationFactor(decimation.getValue());
+            getCompositeParameters().getControlBParameters().getDecimation().setEnabled(decimation.isEnabled());
+            update(getTunerSelect(), UpdateReason.CONTROL_DECIMATION);
+        }
+        else if(getTunerSelect() == TunerSelect.TUNER_BOTH)
+        {
+            //Dual-synchronized tuner mode ... let the parent Device class set the value
+            super.setDecimation(decimation);
+        }
+    }
+
+    /**
+     * Sets the IF mode when tuner 2 is selected in single-tuner mode.
+     * @param ifMode to set
+     */
+    public void setIfModeTuner2(IfMode ifMode)
+    {
+        getCompositeParameters().getTunerBParameters().setIfMode(ifMode);
+    }
+
+    /**
+     * Sets the LO mode when tuner 2 is selected in single-tuner mode.
+     * @param loMode to set
+     */
+    public void setLoModeTuner2(LoMode loMode)
+    {
+        getCompositeParameters().getTunerBParameters().setLoMode(loMode);
+    }
+
+
+    @Override
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append("SDRPplay Device").append("\n");
+        sb.append("\tType: " + getDeviceType()).append("\n");
+        sb.append("\tSerial Number: " + getSerialNumber()).append("\n");
+        sb.append("\tTuner: " + getTunerSelect()).append("\n");
+        sb.append("\tRSP Duo: " + getRspDuoMode()).append("\n");
+        sb.append("\tRSP Duo Sample Rate: " + getRspDuoSampleFrequency()).append("\n");
+        sb.append("\tSelected: " + isSelected());
+        if(hasCompositeParameters())
+        {
+            sb.append("\t").append(getCompositeParameters());
+        }
+
+        return sb.toString();
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/RspDuoMode.java

@@ -0,0 +1,75 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_h;
+
+/**
+ * RSP-Duo Mode
+ */
+public enum RspDuoMode
+{
+    SINGLE_TUNER(sdrplay_api_h.sdrplay_api_RspDuoMode_Single_Tuner(), "SINGLE TUNER"),
+    DUAL_TUNER(sdrplay_api_h.sdrplay_api_RspDuoMode_Dual_Tuner(), "DUAL TUNER"),
+    MASTER(sdrplay_api_h.sdrplay_api_RspDuoMode_Master(), "MASTER"),
+    SLAVE(sdrplay_api_h.sdrplay_api_RspDuoMode_Slave(), "SLAVE"),
+    UNKNOWN(sdrplay_api_h.sdrplay_api_RspDuoMode_Unknown(), "UNKNOWN");
+
+    private int mValue;
+    private String mDescription;
+
+    RspDuoMode(int value, String description)
+    {
+        mValue = value;
+        mDescription = description;
+    }
+
+    /**
+     * Numeric value
+     */
+    public int getValue()
+    {
+        return mValue;
+    }
+
+    /**
+     * Lookup the entry from a return code
+     * @param value to lookup
+     * @return entry or UKNOWN if the code is not recognized
+     */
+    public static RspDuoMode fromValue(int value)
+    {
+        for(RspDuoMode status: RspDuoMode.values())
+        {
+            if(status.getValue() == value)
+            {
+                return status;
+            }
+        }
+        
+        return UNKNOWN;
+    }
+
+    @Override
+    public String toString()
+    {
+        return mDescription;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/RspDuoTuner.java

@@ -0,0 +1,105 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.UpdateReason;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.control.ControlParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.device.RspDuoDeviceParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.RspDuoTunerParameters;
+
+/**
+ * RSPduo Tuner
+ */
+public abstract class RspDuoTuner extends RspTuner<RspDuoDeviceParameters, RspDuoTunerParameters>
+{
+    /**
+     * Constructs an instance
+     * @param device parent for this tuner
+     * @param sdrplay api
+     * @param tunerSelect to specify which tuner
+     * @param deviceParameters for this device
+     * @param tunerParameters for this tuner
+     * @param controlParameters for this device
+     */
+    public RspDuoTuner(Device device, SDRplay sdrplay, TunerSelect tunerSelect, RspDuoDeviceParameters deviceParameters,
+                       RspDuoTunerParameters tunerParameters, ControlParameters controlParameters)
+    {
+        super(device, sdrplay, tunerSelect, deviceParameters, tunerParameters, controlParameters);
+    }
+
+    /**
+     * Indicates if the RF notch is enabled
+     */
+    public boolean isRFNotch()
+    {
+        return getTunerParameters().isRfNotch();
+    }
+
+    /**
+     * Enables or disables the RF notch
+     * @param enable setting
+     * @throws SDRPlayException if there is an error
+     */
+    public void setRfNotch(boolean enable) throws SDRPlayException
+    {
+        getTunerParameters().setRfNotch(enable);
+        update(UpdateReason.RSP_DUO_RF_NOTCH_CONTROL);
+    }
+
+    /**
+     * Indicates if the RF DAB notch is enabled
+     */
+    public boolean isRfDabNotch()
+    {
+        return getTunerParameters().isRfDabNotch();
+    }
+
+    /**
+     * Enables or disables the RF DAB notch
+     * @param enable value
+     * @throws SDRPlayException if there is an error
+     */
+    public void setRfDabNotch(boolean enable) throws SDRPlayException
+    {
+        getTunerParameters().setRfDabNotch(enable);
+        update(UpdateReason.RSP_DUO_RF_DAB_NOTCH_CONTROL);
+    }
+
+    /**
+     * Indicates if the external reference output is enabled.
+     */
+    public boolean isExternalReferenceOutput()
+    {
+        return getDeviceParameters().isExternalReferenceOutput();
+    }
+
+    /**
+     * Enables or disables the external reference output
+     * @param enable value
+     * @throws SDRPlayException if there is an error
+     */
+    public void setExternalReferenceOutput(boolean enable) throws SDRPlayException
+    {
+        getDeviceParameters().setExternalReferenceOutput(enable);
+        update(UpdateReason.RSP_DUO_EXT_REF_CONTROL);
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/RspDuoTuner1.java

@@ -0,0 +1,87 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.UpdateReason;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.control.ControlParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.device.RspDuoDeviceParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.RspDuoAmPort;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.RspDuoTunerParameters;
+
+/**
+ * RSPduo Tuner 1
+ */
+public class RspDuoTuner1 extends RspDuoTuner
+{
+    /**
+     * Constructs an instance
+     *
+     * @param device parent for this tuner
+     * @param sdrplay api
+     * @param deviceParameters for this device
+     * @param tunerParameters for this tuner
+     * @param controlParameters for this device
+     */
+    public RspDuoTuner1(Device device, SDRplay sdrplay, RspDuoDeviceParameters deviceParameters,
+                        RspDuoTunerParameters tunerParameters, ControlParameters controlParameters)
+    {
+        super(device, sdrplay, TunerSelect.TUNER_1, deviceParameters, tunerParameters, controlParameters);
+    }
+
+    /**
+     * Indicates which AM port is selected
+     */
+    public RspDuoAmPort getAmPort()
+    {
+        return getTunerParameters().getTuner1AmPort();
+    }
+
+    /**
+     * Selects the AM port to use
+     * @param port to use
+     * @throws SDRPlayException if there is an error
+     */
+    public void setAmPort(RspDuoAmPort port) throws SDRPlayException
+    {
+        getTunerParameters().setTuner1AmPort(port);
+        update(UpdateReason.RSP_DUO_AM_PORT_SELECT);
+    }
+
+    /**
+     * Indicates if the AM notch is enabled
+     */
+    public boolean isAmNotch()
+    {
+        return getTunerParameters().isTuner1AmNotch();
+    }
+
+    /**
+     * Enables or disables the AM notch
+     * @param enable for the notch
+     * @throws SDRPlayException if there is an error
+     */
+    public void setAmNotch(boolean enable) throws SDRPlayException
+    {
+        getTunerParameters().setTuner1AmNotch(enable);
+        update(UpdateReason.RSP_DUO_TUNER_1_AM_NOTCH_CONTROL);
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/RspDuoTuner2.java

@@ -0,0 +1,67 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.UpdateReason;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.control.ControlParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.device.RspDuoDeviceParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.RspDuoTunerParameters;
+
+/**
+ * RSPduo Tuner 2
+ */
+public class RspDuoTuner2 extends RspDuoTuner
+{
+    /**
+     * Constructs an instance
+     *
+     * @param device parent for this tuner
+     * @param sdrplay api
+     * @param deviceParameters for this device
+     * @param tunerParameters for this tuner
+     * @param controlParameters for this device
+     */
+    public RspDuoTuner2(Device device, SDRplay sdrplay, RspDuoDeviceParameters deviceParameters,
+                        RspDuoTunerParameters tunerParameters, ControlParameters controlParameters)
+    {
+        super(device, sdrplay, TunerSelect.TUNER_2, deviceParameters, tunerParameters, controlParameters);
+    }
+
+    /**
+     * Indicates if the Bias-T is enabled
+     */
+    public boolean isBiasT()
+    {
+        return getTunerParameters().isBiasT();
+    }
+
+    /**
+     * Enables or disables the Bias-T
+     * @param enable value
+     * @throws SDRPlayException if there is an error
+     */
+    public void setBiasT(boolean enable) throws SDRPlayException
+    {
+        getTunerParameters().setBiasT(enable);
+        update(UpdateReason.RSP_DUO_BIAS_T_CONTROL);
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/RspDxDevice.java

@@ -0,0 +1,62 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.composite.RspDxCompositeParameters;
+
+/**
+ * RSPdx Device
+ */
+public class RspDxDevice extends Device<RspDxCompositeParameters, RspDxTuner>
+{
+    private RspDxTuner mTuner1;
+
+    /**
+     * Constructs an SDRPlay RSPdx device from the foreign memory segment
+     *
+     * @param sdrPlay api instance that created this device
+     * @param deviceStruct parser
+     */
+    RspDxDevice(SDRplay sdrPlay, IDeviceStruct deviceStruct)
+    {
+        super(sdrPlay, deviceStruct);
+    }
+
+
+    @Override
+    public RspDxTuner getTuner() throws SDRPlayException
+    {
+        if(!isSelected())
+        {
+            throw new SDRPlayException("Device must be selected before accessing the tuner");
+        }
+
+        if(mTuner1 == null)
+        {
+            mTuner1 = new RspDxTuner(RspDxDevice.this, getAPI(), getTunerSelect(),
+                    getCompositeParameters().getDeviceParameters(), getCompositeParameters().getTunerAParameters(),
+                    getCompositeParameters().getControlAParameters());
+        }
+
+        return mTuner1;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/RspDxTuner.java

@@ -0,0 +1,164 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.UpdateReason;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.control.ControlParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.device.RspDxDeviceParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.HdrModeBandwidth;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.RspDxAntenna;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.RspDxTunerParameters;
+
+/**
+ * RSPdx Tuner
+ */
+public class RspDxTuner extends RspTuner<RspDxDeviceParameters, RspDxTunerParameters>
+{
+    /**
+     * Constructs an instance
+     * @param device parent for this tuner
+     * @param sdrplay api
+     * @param tunerSelect to specify which tuner
+     * @param deviceParameters for this device
+     * @param tunerParameters for this tuner
+     * @param controlParameters for this device
+     */
+    public RspDxTuner(Device device, SDRplay sdrplay, TunerSelect tunerSelect, RspDxDeviceParameters deviceParameters,
+                      RspDxTunerParameters tunerParameters, ControlParameters controlParameters)
+    {
+        super(device, sdrplay, tunerSelect, deviceParameters, tunerParameters, controlParameters);
+    }
+
+    /**
+     * Indicates if HDR mode is enabled
+     */
+    public boolean isHdrMode()
+    {
+        return getDeviceParameters().isHdr();
+    }
+
+    /**
+     * Enables or disables HDR mode
+     * @param enable mode
+     * @throws SDRPlayException if there is an error
+     */
+    public void setHdrMode(boolean enable) throws SDRPlayException
+    {
+        getDeviceParameters().setHdr(enable);
+        update(UpdateReason.EXTENSION_RSP_DX_HDR_ENABLE);
+    }
+
+    /**
+     * HDR mode bandwidth
+     */
+    public HdrModeBandwidth getHdrModeBandwidth()
+    {
+        return getTunerParameters().getHdrModeBandwidth();
+    }
+
+    /**
+     * Sets HDR mode bandwidth
+     * @param bandwidth to select
+     * @throws SDRPlayException if there is an error
+     */
+    public void setHdrModeBandwidth(HdrModeBandwidth bandwidth) throws SDRPlayException
+    {
+        getTunerParameters().setHdrModeBandwidth(bandwidth);
+        update(UpdateReason.EXTENSION_RSP_DX_HDR_BANDWIDTH);
+    }
+
+    /**
+     * Indicates if the RF notch is enabled
+     */
+    public boolean isRfNotch()
+    {
+        return getDeviceParameters().isRfNotch();
+    }
+
+    /**
+     * Enables or disables the RF notch
+     * @param enable setting
+     * @throws SDRPlayException if there is an error
+     */
+    public void setRfNotch(boolean enable) throws SDRPlayException
+    {
+        getDeviceParameters().setRfNotch(enable);
+        update(UpdateReason.EXTENSION_RSP_DX_RF_NOTCH_CONTROL);
+    }
+
+    /**
+     * Indicates if the RF DAB notch is enabled
+     */
+    public boolean isRfDabNotch()
+    {
+        return getDeviceParameters().isRfDabNotch();
+    }
+
+    /**
+     * Enables or disables the RF DAB notch
+     * @param enable value
+     * @throws SDRPlayException if there is an error
+     */
+    public void setRfDabNotch(boolean enable) throws SDRPlayException
+    {
+        getDeviceParameters().setRfDabNotch(enable);
+        update(UpdateReason.EXTENSION_RSP_DX_RF_DAB_NOTCH_CONTROL);
+    }
+
+    /**
+     * Indicates if the Bias-T is enabled
+     */
+    public boolean isBiasT()
+    {
+        return getDeviceParameters().isBiasT();
+    }
+
+    /**
+     * Enables or disables the Bias-T
+     * @param enable value
+     * @throws SDRPlayException if there is an error
+     */
+    public void setBiasT(boolean enable) throws SDRPlayException
+    {
+        getDeviceParameters().setBiasT(enable);
+        update(UpdateReason.EXTENSION_RSP_DX_BIAS_T_CONTROL);
+    }
+
+    /**
+     * Antenna selection
+     */
+    public RspDxAntenna getAntenna()
+    {
+        return getDeviceParameters().getRspDxAntenna();
+    }
+
+    /**
+     * Sets the antenna selection
+     * @param antenna to select
+     * @throws SDRPlayException if there is an error
+     */
+    public void setAntenna(RspDxAntenna antenna) throws SDRPlayException
+    {
+        getDeviceParameters().setRspDxAntenna(antenna);
+        update(UpdateReason.EXTENSION_RSP_DX_ANTENNA_CONTROL);
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/RspTuner.java

@@ -0,0 +1,419 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+import io.github.dsheirer.source.tuner.sdrplay.api.UpdateReason;
+import io.github.dsheirer.source.tuner.sdrplay.api.async.AsyncUpdateFuture;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.control.AgcMode;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.control.ControlParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.device.DeviceParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.Bandwidth;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.Gain;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.GainReduction;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.IfMode;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.LoMode;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.TunerParameters;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Abstract RSP device tuner
+ * @param <T> RSP device implementation
+ */
+public abstract class RspTuner<D extends DeviceParameters, T extends TunerParameters>
+{
+    private static final Logger mLog = LoggerFactory.getLogger(RspTuner.class);
+    private final SDRplay mSDRplay;
+    private final Device mDevice;
+    private final TunerSelect mTunerSelect;
+    private final D mDeviceParameters;
+    private final T mTunerParameters;
+    private final ControlParameters mControlParameters;
+
+    private GainReduction mGainReduction;
+
+    RspTuner(Device device, SDRplay sdrplay, TunerSelect tunerSelect, D deviceParameters, T tunerParameters,
+             ControlParameters controlParameters)
+    {
+        mDevice = device;
+        mSDRplay = sdrplay;
+        mTunerSelect = tunerSelect;
+        mDeviceParameters = deviceParameters;
+        mTunerParameters = tunerParameters;
+        mControlParameters = controlParameters;
+    }
+
+    /**
+     * SDRplay API
+     */
+    private SDRplay getSDRplay()
+    {
+        return mSDRplay;
+    }
+
+    /**
+     * Parent device for this tuner
+     */
+    private Device getDevice()
+    {
+        return mDevice;
+    }
+
+    /**
+     * Selected tuner
+     */
+    public TunerSelect getTunerSelect()
+    {
+        return mTunerSelect;
+    }
+
+    /**
+     * Device parameters
+     */
+    protected D getDeviceParameters()
+    {
+        return mDeviceParameters;
+    }
+
+    /**
+     * Tuner parameters for the selected tuner
+     */
+    public T getTunerParameters()
+    {
+        return mTunerParameters;
+    }
+
+    /**
+     * Control parameters for the selected tuner
+     */
+    protected ControlParameters getControlParameters()
+    {
+        return mControlParameters;
+    }
+
+    /**
+     * Convenience method for notifying the API that parameters for the device have been updated, when the device is
+     * initialized.
+     *
+     * @param updateReasons indicating what has been updated
+     * @throws SDRPlayException if there is an error
+     */
+    protected void update(UpdateReason... updateReasons) throws SDRPlayException
+    {
+        getDevice().update(getTunerSelect(), updateReasons);
+    }
+
+    /**
+     * Convenience method for notifying the device that a parameter for this tuner have been updated.
+     *
+     * Note: the asynchronous device event responses are limited to Frequency, Gain and Sample Rate.  For example,
+     * if you update the RSPduo DAB Notch parameter, it will generate a Gain change notification, so we submit
+     * an async update for the DAB Notch, but anticipate a Gain update response.
+     *
+     * @param updateReason indicating what has been updated
+     * @param expectedResponse that will be received indicating that the async operation is completed.
+     */
+    protected AsyncUpdateFuture updateAsync(UpdateReason updateReason, UpdateReason expectedResponse)
+    {
+        return getDevice().updateAsync(getTunerSelect(), updateReason, expectedResponse);
+    }
+
+    /**
+     * Current tuner bandwidth
+     */
+    public Bandwidth getBandwidth()
+    {
+        return getTunerParameters().getBandwidth();
+    }
+
+    /**
+     * Sets tuner bandwidth
+     * @param bandwidth to apply
+     * @throws SDRPlayException if there is an error
+     */
+    public void setBandwidth(Bandwidth bandwidth) throws SDRPlayException
+    {
+        getTunerParameters().setBandwidth(bandwidth);
+        update(UpdateReason.TUNER_BANDWIDTH_TYPE);
+    }
+
+    /**
+     * Center frequency for the tuner
+     */
+    public long getFrequency()
+    {
+        return (long) getTunerParameters().getRfFrequency().getFrequency();
+    }
+
+    /**
+     * Requests to set the center frequency for the tuner asynchronously.
+     *
+     * Note: the API supports the notion of synchronous frequency updates, but in testing I found that you cannot
+     * submit a second frequency change update request until a previously submitted frequency change update
+     * operation had completed, otherwise it would generate a fail status.  Therefore, this is method is strictly
+     * an async operation.
+     *
+     * @param frequency in Hertz
+     * @return future that can be monitored for completion of the set frequency operation.
+     */
+    public AsyncUpdateFuture setFrequency(long frequency)
+    {
+        try
+        {
+            getTunerParameters().getRfFrequency().setFrequency(frequency, false);
+            updateGainReduction(frequency);
+            return updateAsync(UpdateReason.TUNER_FREQUENCY_RF, UpdateReason.TUNER_FREQUENCY_RF);
+        }
+        catch(SDRPlayException se)
+        {
+            AsyncUpdateFuture future = new AsyncUpdateFuture(getTunerSelect(), UpdateReason.TUNER_FREQUENCY_RF,
+                    UpdateReason.TUNER_FREQUENCY_RF);
+            future.setError(se);
+            return future;
+        }
+    }
+
+    /**
+     * Gain reduction in use for this device with the current RF frequency
+     */
+    public GainReduction getGainReduction()
+    {
+        if(mGainReduction == null)
+        {
+            updateGainReduction(getFrequency());
+        }
+
+        return mGainReduction;
+    }
+
+    /**
+     * Updates the gain reduction, if necessary, for the specified RF frequency
+     *
+     * @param frequency value
+     */
+    private void updateGainReduction(long frequency)
+    {
+        if(mGainReduction == null || !mGainReduction.isValidFor(frequency))
+        {
+            mGainReduction = GainReduction.lookup(getDevice().getDeviceType(), frequency);
+        }
+    }
+
+    /**
+     * Selects a gain value index from the current gain reduction values
+     *
+     * @param index of the gain reduction values to use
+     */
+    public void setGain(int index) throws SDRPlayException
+    {
+        getTunerParameters().getGain().setGain(getGainReduction(), index);
+        update(UpdateReason.TUNER_GAIN_REDUCTION);
+    }
+
+    /**
+     * Sets the automatic gain contral (AGC) mode
+     *
+     * @param mode to set
+     * @throws SDRPlayException if there is an error
+     */
+    public void setAGC(AgcMode mode) throws SDRPlayException
+    {
+        getControlParameters().getAgc().setAgcMode(mode);
+        update(UpdateReason.CONTROL_AGC);
+    }
+
+    /**
+     * AGC Mode
+     */
+    public AgcMode getAGC()
+    {
+        return getControlParameters().getAgc().getAgcMode();
+    }
+
+    /**
+     * Gain for the tuner.
+     */
+    public Gain getGain()
+    {
+        return getTunerParameters().getGain();
+    }
+
+    /**
+     * Current gain index value.
+     * @return current gain index value or -1 if the current gain setting does not match the possible gain reduction options.
+     */
+    public int getGainIndex()
+    {
+        int gainDb = getGain().getGainReductionDb();
+        return getGainReduction().getGainIndex(gainDb);
+    }
+
+    /**
+     * Enables or disables DC correction
+     *
+     * @param enable true or false
+     * @throws SDRPlayException if there is an error
+     */
+    public void setDCCorrection(boolean enable) throws SDRPlayException
+    {
+        getControlParameters().getDcOffset().setDC(enable);
+        update(UpdateReason.CONTROL_DC_OFFSET_IQ_IMBALANCE);
+    }
+
+    /**
+     * Enables or disables IQ imbalance correction
+     *
+     * @param enable true or false
+     * @throws SDRPlayException if there is an error
+     */
+    public void setIQCorrection(boolean enable) throws SDRPlayException
+    {
+        getControlParameters().getDcOffset().setIQ(enable);
+        update(UpdateReason.CONTROL_DC_OFFSET_IQ_IMBALANCE);
+    }
+
+    /**
+     * Sets or updates the parts per million (ppm) frequency correction
+     *
+     * @param ppm value
+     * @throws SDRPlayException
+     */
+    public AsyncUpdateFuture setPPM(double ppm) throws SDRPlayException
+    {
+        getDeviceParameters().setPPM(ppm);
+
+        //Note: async ppm updates effect both frequency and sample rate, so we expect the completion of the
+        //operation will be first FREQUENCY and then SAMPLE RATE, so we watch for sample rate.
+        return updateAsync(UpdateReason.DEVICE_PPM, UpdateReason.DEVICE_SAMPLE_RATE);
+    }
+
+    /**
+     * Parts per million (PPM) frequency correction value
+     *
+     * @return ppm value
+     */
+    public double getPPM()
+    {
+        return getDeviceParameters().getPPM();
+    }
+
+    /**
+     * Perform synchronous update
+     *
+     * @param sampleNumber value
+     * @param period value
+     * @throws SDRPlayException if there is an error
+     */
+    public void setSynchronousUpdate(int sampleNumber, int period) throws SDRPlayException
+    {
+        getDeviceParameters().getSynchronousUpdate().set(sampleNumber, period);
+        update(UpdateReason.DEVICE_SYNC_UPDATE);
+    }
+
+    /**
+     * Resets device functions to default
+     *
+     * @param frequency to reset
+     * @param sampleRate to reset
+     * @param gain to reset
+     * @throws SDRPlayException if there is an error
+     */
+    public void reset(boolean frequency, boolean sampleRate, boolean gain) throws SDRPlayException
+    {
+        getDeviceParameters().getResetFlags().resetGain(gain);
+        getDeviceParameters().getResetFlags().resetFrequency(frequency);
+        getDeviceParameters().getResetFlags().resetSampleRate(sampleRate);
+        update(UpdateReason.DEVICE_RESET_FLAGS);
+    }
+
+    /**
+     * Resets the frequency.
+     *
+     * @param frequency true to reset
+     * @throws SDRPlayException if there is an error
+     */
+    public void resetFrequency(boolean frequency) throws SDRPlayException
+    {
+        reset(frequency, false, false);
+    }
+
+    /**
+     * Resets the sample rate.
+     *
+     * @param sampleRate true to reset
+     * @throws SDRPlayException if there is an error
+     */
+    public void resetSampleRate(boolean sampleRate) throws SDRPlayException
+    {
+        reset(false, sampleRate, false);
+    }
+
+    /**
+     * Resets the gain (reduction).
+     *
+     * @param gain true to reset
+     * @throws SDRPlayException if there is an error
+     */
+    public void resetGain(boolean gain) throws SDRPlayException
+    {
+        reset(false, false, gain);
+    }
+
+    /**
+     * IF mode (type)
+     */
+    public IfMode getIfMode()
+    {
+        return getTunerParameters().getIfMode();
+    }
+
+    /**
+     * Sets the IF mode (type)
+     * @param mode to set
+     * @throws SDRPlayException if there is an error
+     */
+    public void setIfMode(IfMode mode) throws SDRPlayException
+    {
+        getTunerParameters().setIfMode(mode);
+        update(UpdateReason.TUNER_IF_TYPE);
+    }
+
+    /**
+     * Local Oscillator (LO) mode
+     * @return mode
+     */
+    public LoMode getLoMode()
+    {
+        return getTunerParameters().getLoMode();
+    }
+
+    /**
+     * Sets the Local Oscillator (LO) mode
+     * @param mode to set
+     * @throws SDRPlayException if there is an error
+     */
+    public void setLoMode(LoMode mode) throws SDRPlayException
+    {
+        getTunerParameters().setLoMode(mode);
+        update(UpdateReason.TUNER_LO_MODE);
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/TunerSelect.java

@@ -0,0 +1,74 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_h;
+
+/**
+ * Tuner Select
+ */
+public enum TunerSelect
+{
+    TUNER_1(sdrplay_api_h.sdrplay_api_Tuner_A(), "TUNER 1"),
+    TUNER_2(sdrplay_api_h.sdrplay_api_Tuner_B(), "TUNER 2"),
+    TUNER_BOTH(sdrplay_api_h.sdrplay_api_Tuner_Both(), "TUNER 1 & 2"),
+    NEITHER(sdrplay_api_h.sdrplay_api_Tuner_Neither(), "NEITHER");
+
+    private int mValue;
+    private String mDescription;
+
+    TunerSelect(int value, String description)
+    {
+        mValue = value;
+        mDescription = description;
+    }
+
+    /**
+     * Numeric value
+     */
+    public int getValue()
+    {
+        return mValue;
+    }
+
+    /**
+     * Lookup the entry from a return code
+     * @param value to lookup
+     * @return entry or NEITHER if the code is not recognized
+     */
+    public static TunerSelect fromValue(int value)
+    {
+        for(TunerSelect status: TunerSelect.values())
+        {
+            if(status.getValue() == value)
+            {
+                return status;
+            }
+        }
+        
+        return NEITHER;
+    }
+
+    @Override
+    public String toString()
+    {
+        return mDescription;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/device/UnknownDevice.java

@@ -0,0 +1,46 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.device;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRPlayException;
+import io.github.dsheirer.source.tuner.sdrplay.api.SDRplay;
+
+/**
+ * Unknown or Unrecognized SDRplay Device
+ */
+public class UnknownDevice extends Device
+{
+    /**
+     * Constructs an Unknown SDRPlay device from the foreign memory segment
+     *
+     * @param sdrPlay api instance that created this device
+     * @param deviceStruct parser
+     */
+    UnknownDevice(SDRplay sdrPlay, IDeviceStruct deviceStruct)
+    {
+        super(sdrPlay, deviceStruct);
+    }
+
+    @Override
+    public RspTuner getTuner() throws SDRPlayException
+    {
+        throw new SDRPlayException("Unrecognized device type.  Cannot construct tuner");
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/error/DebugLevel.java

@@ -0,0 +1,76 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.error;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_h;
+
+/**
+ * Debug Level
+ */
+public enum DebugLevel
+{
+    DISABLE(sdrplay_api_h.sdrplay_api_DbgLvl_Disable(), "DISABLE"),
+    VERBOSE(sdrplay_api_h.sdrplay_api_DbgLvl_Verbose(), "VERBOSE"),
+    WARNING(sdrplay_api_h.sdrplay_api_DbgLvl_Warning(), "WARNING"),
+    ERROR(sdrplay_api_h.sdrplay_api_DbgLvl_Error(), "ERROR"),
+    MESSAGE(sdrplay_api_h.sdrplay_api_DbgLvl_Message(), "MESSAGE"),
+    UNKNOWN(-1, "UNKNOWN");
+
+    private int mValue;
+    private String mDescription;
+
+    DebugLevel(int value, String description)
+    {
+        mValue = value;
+        mDescription = description;
+    }
+
+    /**
+     * Numeric value
+     */
+    public int getValue()
+    {
+        return mValue;
+    }
+
+    /**
+     * Lookup the entry from a return code
+     * @param value to lookup
+     * @return entry or UNKNOWN if the code is not recognized
+     */
+    public static DebugLevel fromValue(int value)
+    {
+        for(DebugLevel status: DebugLevel.values())
+        {
+            if(status.getValue() == value)
+            {
+                return status;
+            }
+        }
+        
+        return UNKNOWN;
+    }
+
+    @Override
+    public String toString()
+    {
+        return mDescription;
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/error/ErrorInformation.java

@@ -0,0 +1,77 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.error;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_ErrorInfoT;
+import java.lang.foreign.MemorySegment;
+
+/**
+ * Error Information structure (sdrplay_api_ErrorInfoT)
+ */
+public class ErrorInformation
+{
+    private String mFile;
+    private String mFunction;
+    private int mLine;
+    private String mMessage;
+
+    /**
+     * Constructs an instance from the foreign memory segment
+     */
+    public ErrorInformation(MemorySegment memorySegment)
+    {
+        mFile = sdrplay_api_ErrorInfoT.file$slice(memorySegment).getUtf8String(0);
+        mFunction = sdrplay_api_ErrorInfoT.function$slice(memorySegment).getUtf8String(0);
+        mLine = sdrplay_api_ErrorInfoT.line$get(memorySegment);
+        mMessage = sdrplay_api_ErrorInfoT.message$slice(memorySegment).getUtf8String(0);
+    }
+
+    public String getFile()
+    {
+        return mFile;
+    }
+
+    public String getFunction()
+    {
+        return mFunction;
+    }
+
+    public int getLine()
+    {
+        return mLine;
+    }
+
+    public String getMessage()
+    {
+        return mMessage;
+    }
+
+    @Override
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Error Information:").append("\n");
+        sb.append("\t    File: ").append(getFile()).append("\n");
+        sb.append("\tFunction: ").append(getFunction()).append("\n");
+        sb.append("\t    Line: ").append(getLine()).append("\n");
+        sb.append("\t Message: ").append(getMessage()).append("\n");
+        return sb.toString();
+    }
+}

src/main/java/io/github/dsheirer/source/tuner/sdrplay/api/parameter/composite/CompositeParameters.java

@@ -0,0 +1,108 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.source.tuner.sdrplay.api.parameter.composite;
+
+import io.github.dsheirer.source.tuner.sdrplay.api.device.DeviceType;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.control.ControlParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.device.DeviceParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.device.DeviceParametersFactory;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.TunerParameters;
+import io.github.dsheirer.source.tuner.sdrplay.api.parameter.tuner.TunerParametersFactory;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_DevParamsT;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_DeviceParamsT;
+import io.github.dsheirer.source.tuner.sdrplay.api.v3_07.sdrplay_api_RxChannelParamsT;
+import java.lang.foreign.MemoryAddress;
+import java.lang.foreign.MemorySegment;
+import java.lang.foreign.MemorySession;
+
+/**
+ * Composite Device Parameters structure (sdrplay_api_DeviceParamsT) providing access to the device parameters and
+ * the tuner 1 parameters.  Tuner 2 parameters are only accessible via the RSPduo sub-class implementation.
+ *
+ * Note: sub-class implementations will constrain access to the appropriate sub-structures of the DeviceParamsT
+ * structure for each specific device.
+ */
+public class CompositeParameters<D extends DeviceParameters, T extends TunerParameters>
+{
+    private D mDeviceParameters;
+    private T mTunerAParameters;
+    private ControlParameters mControlAParameters;
+
+    /**
+     * Constructs an instance from the foreign memory segment
+     *
+     * @param deviceType to create
+     * @param memorySegment for the composite structure in foreign memory
+     * @param memorySession for allocating additional memory segments for the sub-structures.
+     */
+    public CompositeParameters(DeviceType deviceType, MemorySegment memorySegment, MemorySession memorySession)
+    {
+        MemoryAddress parametersMemoryAddress = sdrplay_api_DeviceParamsT.devParams$get(memorySegment);
+        MemorySegment parametersMemorySegment = sdrplay_api_DevParamsT.ofAddress(parametersMemoryAddress, memorySession);
+        mDeviceParameters = (D) DeviceParametersFactory.create(deviceType, parametersMemorySegment);
+
+        MemoryAddress memoryAddressRxA = sdrplay_api_DeviceParamsT.rxChannelA$get(memorySegment);
+        MemorySegment memorySegmentRxA = sdrplay_api_RxChannelParamsT.ofAddress(memoryAddressRxA, memorySession);
+        mTunerAParameters = (T) TunerParametersFactory.create(deviceType, memorySegmentRxA);
+
+        MemorySegment tunerAControlParametersMemorySegment = sdrplay_api_RxChannelParamsT.ctrlParams$slice(memorySegmentRxA);
+        mControlAParameters = new ControlParameters(tunerAControlParametersMemorySegment);
+    }
+
+    /**
+     * Device parameters
+     */
+    public D getDeviceParameters()
+    {
+        return mDeviceParameters;
+    }
+
+    /**
+     * Tuner A Parameters.
+     *
+     * Note: this is normally mapped to tuner 1.  In the RSPduo, this is mapped to Tuner 1 or Tuner 2, according to how
+     * the user has setup the TunerSelect.
+     */
+    public T getTunerAParameters()
+    {
+        return mTunerAParameters;
+    }
+
+    /**
+     * Tuner A Control Parameters
+     *
+     * Note: this is normally mapped to tuner 1.  In the RSPduo, this is mapped to Tuner 1 or Tuner 2, according to how
+     * the user has setup the TunerSelect.
+     */
+    public ControlParameters getControlAParameters()
+    {
+        return mControlAParameters;
+    }
+
+    @Override
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Composite Parameters\n");
+        sb.append("\tDevice Parameters:\n").append(getDeviceParameters()).append("\n");
+        sb.append("\tTuner A Parameters:\n").append(getTunerAParameters()).append("\n");
+        return sb.toString();
+    }
+}