diff -r 5158c0d3bde3 -r d00bf4f57250 baseport/syborg/soundsc/virtio_audio_defs.h
--- a/baseport/syborg/soundsc/virtio_audio_defs.h	Mon May 10 11:37:38 2010 +0100
+++ b/baseport/syborg/soundsc/virtio_audio_defs.h	Wed May 12 23:13:16 2010 +0100
@@ -59,7 +59,8 @@
 enum StreamDirection
 	{
 	EDirectionPlayback = 0,
-	EDirectionRecord = 1
+	EDirectionRecord = 1,
+    EDirectionNone = 2 // closes current stream
 	};
 
 struct TCommand