SoapySDR support: create output plugin with enumeration

plugins/samplesink/CMakeLists.txt

@@ -28,6 +28,11 @@ if(CM256CC_FOUND)
     add_subdirectory(sdrdaemonsink)
 endif(CM256CC_FOUND)
 
+find_package(SoapySDR)
+if(LIBUSB_FOUND AND SOAPYSDR_FOUND)
+	add_subdirectory(soapysdroutput)
+endif()
+
 if (BUILD_DEBIAN)
     add_subdirectory(bladerf1output)
     add_subdirectory(bladerf2output)
@@ -35,6 +40,7 @@ if (BUILD_DEBIAN)
     add_subdirectory(limesdroutput)
     add_subdirectory(plutosdroutput)
     add_subdirectory(sdrdaemonsink)
+    add_subdirectory(soapysdroutput)
 endif (BUILD_DEBIAN)
 
 add_subdirectory(filesink)

plugins/samplesink/bladerf2output/CMakeLists.txt

@@ -13,7 +13,7 @@ set(bladerf2output_SOURCES
 set(bladerf2output_HEADERS
 	bladerf2outputgui.h
 	bladerf2output.h
-	bladerf1soutputplugin.h
+	bladerf2outputplugin.h
 	bladerf2outputsettings.h
 	bladerf2outputthread.h
 )

plugins/samplesink/bladerf2output/bladerf2outputgui.h

@@ -46,8 +46,8 @@ public:
     void resetToDefaults();
     virtual qint64 getCenterFrequency() const;
     virtual void setCenterFrequency(qint64 centerFrequency);
-    QByteArray serialize() const;
+    virtual QByteArray serialize() const;
-    bool deserialize(const QByteArray& data);
+    virtual bool deserialize(const QByteArray& data);
     virtual MessageQueue *getInputMessageQueue() { return &m_inputMessageQueue; }
     virtual bool handleMessage(const Message& message);
 

plugins/samplesink/bladerf2output/bladerf2outputplugin.h

@@ -22,7 +22,7 @@
 
 class PluginAPI;
 
-#define BLADERF2OUTPUT_DEVICE_TYPE_ID "sdrangel.samplesource.bladerf2output"
+#define BLADERF2OUTPUT_DEVICE_TYPE_ID "sdrangel.samplesink.bladerf2output"
 
 class BladeRF2OutputPlugin : public QObject, public PluginInterface {
     Q_OBJECT

plugins/samplesink/soapysdroutput/CMakeLists.txt

@@ -0,0 +1,78 @@
+project(soapysdroutput)
+
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+
+set(soapysdroutput_SOURCES
+	soapysdroutputgui.cpp
+	soapysdroutput.cpp
+	soapysdroutputplugin.cpp
+#	soapysdroutputsettings.cpp
+#	soapysdroutputthread.cpp
+)
+
+set(soapysdroutput_HEADERS
+	soapysdroutputgui.h
+	soapysdroutput.h
+	soapysdroutputplugin.h
+#	soapysdroutputsettings.h
+#	soapysdroutputthread.h
+)
+
+set(soapysdroutput_FORMS
+#	soapysdroutputgui.ui
+)
+
+if (BUILD_DEBIAN)
+include_directories(
+    .
+    ${CMAKE_CURRENT_BINARY_DIR}
+    ${CMAKE_SOURCE_DIR}/swagger/sdrangel/code/qt5/client    
+    ${CMAKE_SOURCE_DIR}/devices
+    ${SOAPYSDRSRC}/include
+    ${SOAPYSDRSRC}/src
+)
+else (BUILD_DEBIAN)
+include_directories(
+	.
+	${CMAKE_CURRENT_BINARY_DIR}
+    ${CMAKE_SOURCE_DIR}/swagger/sdrangel/code/qt5/client	
+	${CMAKE_SOURCE_DIR}/devices
+	${SOAPYSDR_INCLUDE_DIR}
+)
+endif (BUILD_DEBIAN)
+
+add_definitions(${QT_DEFINITIONS})
+add_definitions(-DQT_PLUGIN)
+add_definitions(-DQT_SHARED)
+
+qt5_wrap_ui(soapysdroutput_FORMS_HEADERS ${soapysdroutput_FORMS})
+
+add_library(outputsoapysdr SHARED
+	${soapysdroutput_SOURCES}
+	${soapysdroutput_HEADERS_MOC}
+	${soapysdroutput_FORMS_HEADERS}
+)
+
+if (BUILD_DEBIAN)
+target_link_libraries(outputsoapysdr
+    ${QT_LIBRARIES}
+    bladerf
+    sdrbase
+    sdrgui
+    swagger
+    soapysdrdevice
+)
+else (BUILD_DEBIAN)
+target_link_libraries(outputsoapysdr
+	${QT_LIBRARIES}
+	${SOAPYSDR_LIBRARY}
+	sdrbase
+	sdrgui
+	swagger
+	soapysdrdevice
+)
+endif (BUILD_DEBIAN)
+
+target_link_libraries(outputsoapysdr Qt5::Core Qt5::Widgets)
+
+install(TARGETS outputsoapysdr DESTINATION lib/plugins/samplesink)

plugins/samplesink/soapysdroutput/soapysdroutput.cpp

@@ -0,0 +1,84 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2018 Edouard Griffiths, F4EXB                                   //
+//                                                                               //
+// 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 as version 3 of the License, or                  //
+//                                                                               //
+// 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 V3 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/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#include "util/simpleserializer.h"
+
+#include "soapysdroutput.h"
+
+SoapySDROutput::SoapySDROutput(DeviceSinkAPI *deviceAPI __attribute__((unused))) :
+    m_deviceDescription("SoapySDROutput")
+{
+}
+
+SoapySDROutput::~SoapySDROutput()
+{
+}
+
+void SoapySDROutput::destroy()
+{
+    delete this;
+}
+
+void SoapySDROutput::init()
+{
+}
+
+bool SoapySDROutput::start()
+{
+    return false;
+}
+
+void SoapySDROutput::stop()
+{
+}
+
+QByteArray SoapySDROutput::serialize() const
+{
+    SimpleSerializer s(1);
+    return s.final();
+}
+
+bool SoapySDROutput::deserialize(const QByteArray& data __attribute__((unused)))
+{
+    return false;
+}
+
+const QString& SoapySDROutput::getDeviceDescription() const
+{
+    return m_deviceDescription;
+}
+
+int SoapySDROutput::getSampleRate() const
+{
+    return 0;
+}
+
+quint64 SoapySDROutput::getCenterFrequency() const
+{
+    return 0;
+}
+
+void SoapySDROutput::setCenterFrequency(qint64 centerFrequency __attribute__((unused)))
+{
+}
+
+bool SoapySDROutput::handleMessage(const Message& message __attribute__((unused)))
+{
+    return false;
+}
+
+
+

plugins/samplesink/soapysdroutput/soapysdroutput.h

@@ -0,0 +1,52 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2018 Edouard Griffiths, F4EXB                                   //
+//                                                                               //
+// 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 as version 3 of the License, or                  //
+//                                                                               //
+// 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 V3 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/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#ifndef PLUGINS_SAMPLESINK_SOAPYSDROUTPUT_SOAPYSDROUTPUT_H_
+#define PLUGINS_SAMPLESINK_SOAPYSDROUTPUT_SOAPYSDROUTPUT_H_
+
+#include <QString>
+
+#include "dsp/devicesamplesink.h"
+
+class DeviceSinkAPI;
+
+class SoapySDROutput : public DeviceSampleSink {
+public:
+    SoapySDROutput(DeviceSinkAPI *deviceAPI);
+    virtual ~SoapySDROutput();
+    virtual void destroy();
+
+    virtual void init();
+    virtual bool start();
+    virtual void stop();
+
+    virtual QByteArray serialize() const;
+    virtual bool deserialize(const QByteArray& data);
+
+    virtual void setMessageQueueToGUI(MessageQueue *queue) { m_guiMessageQueue = queue; }
+    virtual const QString& getDeviceDescription() const;
+    virtual int getSampleRate() const;
+    virtual quint64 getCenterFrequency() const;
+    virtual void setCenterFrequency(qint64 centerFrequency);
+
+    virtual bool handleMessage(const Message& message);
+
+private:
+    QString m_deviceDescription;
+};
+
+
+#endif /* PLUGINS_SAMPLESINK_SOAPYSDROUTPUT_SOAPYSDROUTPUT_H_ */

plugins/samplesink/soapysdroutput/soapysdroutputgui.cpp

@@ -0,0 +1,89 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2018 Edouard Griffiths, F4EXB                                   //
+//                                                                               //
+// 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 as version 3 of the License, or                  //
+//                                                                               //
+// 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 V3 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/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#include "dsp/dspengine.h"
+#include "dsp/dspcommands.h"
+#include "device/devicesinkapi.h"
+#include "device/deviceuiset.h"
+#include "util/simpleserializer.h"
+
+#include "soapysdroutputgui.h"
+
+SoapySDROutputGui::SoapySDROutputGui(DeviceUISet *deviceUISet, QWidget* parent) :
+    QWidget(parent),
+    ui(0),
+    m_deviceUISet(deviceUISet),
+    m_forceSettings(true),
+    m_doApplySettings(true),
+    m_sampleSink(0),
+    m_sampleRate(0),
+    m_lastEngineState(DSPDeviceSinkEngine::StNotStarted)
+{
+}
+
+SoapySDROutputGui::~SoapySDROutputGui()
+{
+}
+
+void SoapySDROutputGui::destroy()
+{
+    delete this;
+}
+
+void SoapySDROutputGui::setName(const QString& name)
+{
+    setObjectName(name);
+}
+
+QString SoapySDROutputGui::getName() const
+{
+    return objectName();
+}
+
+void SoapySDROutputGui::resetToDefaults()
+{
+}
+
+qint64 SoapySDROutputGui::getCenterFrequency() const
+{
+    return 0;
+}
+
+void SoapySDROutputGui::setCenterFrequency(qint64 centerFrequency __attribute__((unused)))
+{
+}
+
+QByteArray SoapySDROutputGui::serialize() const
+{
+    SimpleSerializer s(1);
+    return s.final();
+}
+
+bool SoapySDROutputGui::deserialize(const QByteArray& data __attribute__((unused)))
+{
+    return false;
+}
+
+
+bool SoapySDROutputGui::handleMessage(const Message& message __attribute__((unused)))
+{
+    return false;
+}
+
+
+
+
+

plugins/samplesink/soapysdroutput/soapysdroutputgui.h

@@ -0,0 +1,69 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2018 Edouard Griffiths, F4EXB                                   //
+//                                                                               //
+// 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 as version 3 of the License, or                  //
+//                                                                               //
+// 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 V3 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/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#ifndef PLUGINS_SAMPLESINK_SOAPYSDROUTPUT_SOAPYSDROUTPUTGUI_H_
+#define PLUGINS_SAMPLESINK_SOAPYSDROUTPUT_SOAPYSDROUTPUTGUI_H_
+
+#include <QTimer>
+#include <QWidget>
+
+#include "plugin/plugininstancegui.h"
+#include "util/messagequeue.h"
+
+#include "soapysdroutput.h"
+
+class DeviceSampleSink;
+class DeviceUISet;
+
+namespace Ui {
+    class SoapySDROutputGui;
+}
+
+class SoapySDROutputGui : public QWidget, public PluginInstanceGUI {
+    Q_OBJECT
+
+public:
+    explicit SoapySDROutputGui(DeviceUISet *deviceUISet, QWidget* parent = 0);
+    virtual ~SoapySDROutputGui();
+    virtual void destroy();
+
+    void setName(const QString& name);
+    QString getName() const;
+
+    void resetToDefaults();
+    virtual qint64 getCenterFrequency() const;
+    virtual void setCenterFrequency(qint64 centerFrequency);
+    virtual QByteArray serialize() const;
+    virtual bool deserialize(const QByteArray& data);
+    virtual MessageQueue *getInputMessageQueue() { return &m_inputMessageQueue; }
+    virtual bool handleMessage(const Message& message);
+
+private:
+    Ui::SoapySDROutputGui* ui;
+
+    DeviceUISet* m_deviceUISet;
+    bool m_forceSettings;
+    bool m_doApplySettings;
+    QTimer m_updateTimer;
+    QTimer m_statusTimer;
+    SoapySDROutput* m_sampleSink;
+    int m_sampleRate;
+    quint64 m_deviceCenterFrequency; //!< Center frequency in device
+    int m_lastEngineState;
+    MessageQueue m_inputMessageQueue;
+};
+
+#endif /* PLUGINS_SAMPLESINK_SOAPYSDROUTPUT_SOAPYSDROUTPUTGUI_H_ */

plugins/samplesink/soapysdroutput/soapysdroutputplugin.cpp

@@ -0,0 +1,133 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2018 Edouard Griffiths, F4EXB                                   //
+//                                                                               //
+// 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 as version 3 of the License, or                  //
+//                                                                               //
+// 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 V3 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/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#include <QtPlugin>
+
+#include "plugin/pluginapi.h"
+#include "util/simpleserializer.h"
+#include "device/devicesourceapi.h"
+#include "soapysdr/devicesoapysdr.h"
+
+#include "soapysdroutputplugin.h"
+
+#ifdef SERVER_MODE
+#include "soapysdroutput.h"
+#else
+#include "soapysdroutputgui.h"
+#endif
+
+const PluginDescriptor SoapySDROutputPlugin::m_pluginDescriptor = {
+    QString("SoapySDR Output"),
+    QString("4.3.0"),
+    QString("(c) Edouard Griffiths, F4EXB"),
+    QString("https://github.com/f4exb/sdrangel"),
+    true,
+    QString("https://github.com/f4exb/sdrangel")
+};
+
+const QString SoapySDROutputPlugin::m_hardwareID = "SoapySDR";
+const QString SoapySDROutputPlugin::m_deviceTypeID = SOAPYSDROUTPUT_DEVICE_TYPE_ID;
+
+SoapySDROutputPlugin::SoapySDROutputPlugin(QObject* parent) :
+    QObject(parent)
+{
+}
+
+const PluginDescriptor& SoapySDROutputPlugin::getPluginDescriptor() const
+{
+    return m_pluginDescriptor;
+}
+
+void SoapySDROutputPlugin::initPlugin(PluginAPI* pluginAPI)
+{
+    pluginAPI->registerSampleSink(m_deviceTypeID, this);
+}
+
+PluginInterface::SamplingDevices SoapySDROutputPlugin::enumSampleSinks()
+{
+    SamplingDevices result;
+    DeviceSoapySDR& deviceSoapySDR = DeviceSoapySDR::instance();
+    const std::vector<DeviceSoapySDRScan::SoapySDRDeviceEnum>& devicesEnumeration = deviceSoapySDR.getDevicesEnumeration();
+    qDebug("SoapySDRInputPlugin::enumSampleSources: found %lu devices", devicesEnumeration.size());
+    std::vector<DeviceSoapySDRScan::SoapySDRDeviceEnum>::const_iterator it = devicesEnumeration.begin();
+
+    for (int idev = 0; it != devicesEnumeration.end(); ++it, idev++)
+    {
+        unsigned int nbTxChannels = it->m_nbTx;
+
+        for (unsigned int ichan = 0; ichan < nbTxChannels; ichan++)
+        {
+            qDebug("SoapySDROutputPlugin::enumSampleSinks: device #%d (%s) channel %u", idev, it->m_label, ichan);
+            QString displayedName(QString("SoapySDR[%1:%2] %3").arg(idev).arg(ichan).arg(it->m_label));
+            result.append(SamplingDevice(displayedName,
+                    m_hardwareID,
+                    m_deviceTypeID,
+                    it->m_idValue,
+                    idev,
+                    PluginInterface::SamplingDevice::PhysicalDevice,
+                    false,
+                    nbTxChannels,
+                    ichan));
+        }
+    }
+
+    return result;
+}
+
+#ifdef SERVER_MODE
+PluginInstanceGUI* SoapySDROutputPlugin::createSampleSinkPluginInstanceGUI(
+        const QString& sinkId __attribute__((unused)),
+        QWidget **widget __attribute__((unused)),
+        DeviceUISet *deviceUISet __attribute__((unused)))
+{
+    return 0;
+}
+#else
+PluginInstanceGUI* SoapySDROutputPlugin::createSampleSinkPluginInstanceGUI(
+        const QString& sinkId,
+        QWidget **widget,
+        DeviceUISet *deviceUISet)
+{
+    if(sinkId == m_deviceTypeID)
+    {
+        SoapySDROutputGui* gui = new SoapySDROutputGui(deviceUISet);
+        *widget = gui;
+        return gui;
+    }
+    else
+    {
+        return 0;
+    }
+}
+#endif
+
+DeviceSampleSink* SoapySDROutputPlugin::createSampleSinkPluginInstanceOutput(const QString& sinkId, DeviceSinkAPI *deviceAPI)
+{
+    if(sinkId == m_deviceTypeID)
+    {
+        SoapySDROutput* output = new SoapySDROutput(deviceAPI);
+        return output;
+    }
+    else
+    {
+        return 0;
+    }
+}
+
+
+
+
+

plugins/samplesink/soapysdroutput/soapysdroutputplugin.h

@@ -0,0 +1,54 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2018 Edouard Griffiths, F4EXB                                   //
+//                                                                               //
+// 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 as version 3 of the License, or                  //
+//                                                                               //
+// 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 V3 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/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#ifndef PLUGINS_SAMPLESINK_SOAPYSDROUTPUT_SOAPYSDROUTPUTPLUGIN_H_
+#define PLUGINS_SAMPLESINK_SOAPYSDROUTPUT_SOAPYSDROUTPUTPLUGIN_H_
+
+#include <QObject>
+#include "plugin/plugininterface.h"
+
+class PluginAPI;
+
+#define SOAPYSDROUTPUT_DEVICE_TYPE_ID "sdrangel.samplesink.soapysdroutput"
+
+class SoapySDROutputPlugin : public QObject, public PluginInterface {
+    Q_OBJECT
+    Q_INTERFACES(PluginInterface)
+    Q_PLUGIN_METADATA(IID SOAPYSDROUTPUT_DEVICE_TYPE_ID)
+
+public:
+    explicit SoapySDROutputPlugin(QObject* parent = 0);
+
+    const PluginDescriptor& getPluginDescriptor() const;
+    void initPlugin(PluginAPI* pluginAPI);
+
+    virtual SamplingDevices enumSampleSinks();
+
+    virtual PluginInstanceGUI* createSampleSinkPluginInstanceGUI(
+            const QString& sinkId,
+            QWidget **widget,
+            DeviceUISet *deviceUISet);
+
+    virtual DeviceSampleSink* createSampleSinkPluginInstanceOutput(const QString& sinkId, DeviceSinkAPI *deviceAPI);
+
+    static const QString m_hardwareID;
+    static const QString m_deviceTypeID;
+
+private:
+    static const PluginDescriptor m_pluginDescriptor;
+};
+
+#endif /* PLUGINS_SAMPLESINK_SOAPYSDROUTPUT_SOAPYSDROUTPUTPLUGIN_H_ */

plugins/samplesource/CMakeLists.txt

@@ -97,6 +97,7 @@ if (BUILD_DEBIAN)
     add_subdirectory(rtlsdr)
     add_subdirectory(sdrdaemonsource)
     add_subdirectory(sdrplay)
+    add_subdirectory(soapysdrinput)
 endif (BUILD_DEBIAN)
 
 add_subdirectory(filesource)

plugins/samplesource/soapysdrinput/soapysdrinput.cpp

@@ -18,7 +18,8 @@
 
 #include "soapysdrinput.h"
 
-SoapySDRInput::SoapySDRInput(DeviceSourceAPI *deviceAPI)
+SoapySDRInput::SoapySDRInput(DeviceSourceAPI *deviceAPI __attribute__((unused))) :
+    m_deviceDescription("SoapySDRInput")
 {
 }
 
@@ -50,7 +51,7 @@ QByteArray SoapySDRInput::serialize() const
     return s.final();
 }
 
-bool SoapySDRInput::deserialize(const QByteArray& data)
+bool SoapySDRInput::deserialize(const QByteArray& data __attribute__((unused)))
 {
     return false;
 }
@@ -70,11 +71,11 @@ quint64 SoapySDRInput::getCenterFrequency() const
     return 0;
 }
 
-void SoapySDRInput::setCenterFrequency(qint64 centerFrequency)
+void SoapySDRInput::setCenterFrequency(qint64 centerFrequency __attribute__((unused)))
 {
 }
 
-bool SoapySDRInput::handleMessage(const Message& message)
+bool SoapySDRInput::handleMessage(const Message& message __attribute__((unused)))
 {
     return false;
 }

plugins/samplesource/soapysdrinput/soapysdrinputplugin.cpp

@@ -69,6 +69,7 @@ PluginInterface::SamplingDevices SoapySDRInputPlugin::enumSampleSources()
 
         for (unsigned int ichan = 0; ichan < nbRxChannels; ichan++)
         {
+            qDebug("SoapySDRInputPlugin::enumSampleSources: device #%d (%s) channel %u", idev, it->m_label, ichan);
             QString displayedName(QString("SoapySDR[%1:%2] %3").arg(idev).arg(ichan).arg(it->m_label));
             result.append(SamplingDevice(displayedName,
                     m_hardwareID,