add ::drop_device() method to ARDOUR::AudioBackend

diff --git a/libs/ardour/ardour/audio_backend.h b/libs/ardour/ardour/audio_backend.h
index 6e4084ac9d419768def640bfb695066f6207a29b..323b5017de372ba0711170b4b48c3381f76313a3 100644 (file)
--- a/libs/ardour/ardour/audio_backend.h
+++ b/libs/ardour/ardour/audio_backend.h
@@ -188,6 +188,9 @@ class LIBARDOUR_API AudioBackend : public PortEngine {
     /** Set the name of the device to be used
      */
     virtual int set_device_name (const std::string&) = 0;
+    /** Deinitialize and destroy current device
+     */
+       virtual int drop_device() {};
     /** Set the sample rate to be used
      */
     virtual int set_sample_rate (float) = 0;