snd_pcm_start 472 include/sound/pcm.h int snd_pcm_start(struct snd_pcm_substream *substream); snd_pcm_start 1671 sound/core/pcm_lib.c err = snd_pcm_start(substream); snd_pcm_start 1816 sound/core/pcm_lib.c err = snd_pcm_start(substream);