bcm2835_audio_drain 277 drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c return bcm2835_audio_drain(alsa_stream); bcm2835_audio_drain 104 drivers/staging/vc04_services/bcm2835-audio/bcm2835.h int bcm2835_audio_drain(struct bcm2835_alsa_stream *alsa_stream);