Symbol: bcm2835_audio_drain
drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
265
return bcm2835_audio_drain(alsa_stream);
drivers/staging/vc04_services/bcm2835-audio/bcm2835.h
103
int bcm2835_audio_drain(struct bcm2835_alsa_stream *alsa_stream);