Index: uspace/lib/drv/include/audio_pcm_iface.h
===================================================================
--- uspace/lib/drv/include/audio_pcm_iface.h	(revision 039337e876bac63fc665c6a329158defd6664911)
+++ uspace/lib/drv/include/audio_pcm_iface.h	(revision 63d6ff9311426e577a7c713ac7fe2a05b8cd23ea)
@@ -43,4 +43,12 @@
 #include "ddf/driver.h"
 
+enum {
+	PCM_EVENT_PLAYBACK_DONE = IPC_FIRST_USER_METHOD,
+	PCM_EVENT_RECORDING_DONE,
+	PCM_EVENT_PLAYBACK_TERMINATED,
+	PCM_EVENT_RECORDING_TERMINATED
+};
+
+
 int audio_pcm_get_info_str(async_exch_t *, const char **);
 int audio_pcm_get_buffer(async_exch_t *, void **, size_t *, unsigned *,