diff --git a/sdrbase/device/deviceapi.cpp b/sdrbase/device/deviceapi.cpp
index 359f752e6..54a7f7c99 100644
--- a/sdrbase/device/deviceapi.cpp
+++ b/sdrbase/device/deviceapi.cpp
@@ -15,6 +15,7 @@
 ///////////////////////////////////////////////////////////////////////////////////
 
 #include "device/deviceapi.h"
+#include "plugin/plugingui.h"
 #include "gui/glspectrum.h"
 #include "gui/channelwindow.h"
 #include "mainwindow.h"
@@ -28,7 +29,9 @@ DeviceAPI::DeviceAPI(MainWindow *mainWindow,
     m_deviceTabIndex(deviceTabIndex),
     m_deviceEngine(deviceEngine),
     m_spectrum(glSpectrum),
-    m_channelWindow(channelWindow)
+    m_channelWindow(channelWindow),
+    m_sampleSourceSequence(0),
+    m_sampleSourcePluginGUI(0)
 {
 }
 
@@ -135,3 +138,36 @@ void DeviceAPI::setInputGUI(QWidget* inputGUI, const QString& sourceDisplayName)
 {
     m_mainWindow->setInputGUI(m_deviceTabIndex, inputGUI, sourceDisplayName);
 }
+
+void DeviceAPI::setSampleSourceId(const QString& id)
+{
+    m_sampleSourceId = id;
+}
+
+void DeviceAPI::setSampleSourceSerial(const QString& serial)
+{
+    m_sampleSourceSerial = serial;
+}
+
+void DeviceAPI::setSampleSourceSequence(int sequence)
+{
+    m_sampleSourceSequence = sequence;
+}
+
+void DeviceAPI::setSampleSourcePluginGUI(PluginGUI *gui)
+{
+    m_sampleSourcePluginGUI = gui;
+}
+
+void DeviceAPI::freeAll()
+{
+    m_deviceEngine->stopAcquistion();
+
+    if(m_sampleSourcePluginGUI != 0)
+    {
+        m_deviceEngine->setSource(0);
+        m_sampleSourcePluginGUI->destroy();
+        m_sampleSourcePluginGUI = 0;
+        m_sampleSourceId.clear();
+    }
+}
diff --git a/sdrbase/device/deviceapi.h b/sdrbase/device/deviceapi.h
index 72f6fb062..9f668a6c4 100644
--- a/sdrbase/device/deviceapi.h
+++ b/sdrbase/device/deviceapi.h
@@ -65,6 +65,13 @@ public:
     void addRollupWidget(QWidget *widget);               //!< Add rollup widget to channel window
     void setInputGUI(QWidget* inputGUI, const QString& sourceDisplayName);
 
+    void setSampleSourceId(const QString& id);
+    void setSampleSourceSerial(const QString& serial);
+    void setSampleSourceSequence(int sequence);
+    void setSampleSourcePluginGUI(PluginGUI *gui);
+
+    void freeAll();
+
 protected:
     DeviceAPI(MainWindow *mainWindow,
             int deviceTabIndex,
@@ -79,6 +86,11 @@ protected:
     GLSpectrum *m_spectrum;
     ChannelWindow *m_channelWindow;
 
+    QString m_sampleSourceId;
+    QString m_sampleSourceSerial;
+    int m_sampleSourceSequence;
+    PluginGUI* m_sampleSourcePluginGUI;
+
     friend class MainWindow;
 };