HelenOS sources

audio_pcm_unregister_event_callback  175 uspace/app/wavplay/dplay.c 		audio_pcm_unregister_event_callback(pb->device);
audio_pcm_unregister_event_callback  185 uspace/app/wavplay/dplay.c 	audio_pcm_unregister_event_callback(pb->device);
audio_pcm_unregister_event_callback   88 uspace/lib/drv/include/audio_pcm_iface.h errno_t audio_pcm_unregister_event_callback(audio_pcm_sess_t *);
audio_pcm_unregister_event_callback  298 uspace/srv/audio/hound/audio_device.c 			audio_pcm_unregister_event_callback(dev->sess);
audio_pcm_unregister_event_callback  308 uspace/srv/audio/hound/audio_device.c 			audio_pcm_unregister_event_callback(dev->sess);
HelenOS homepage, sources at GitHub