snd_aw2_pcm_trigger_playback 134 sound/pci/aw2/aw2-alsa.c static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream, snd_aw2_pcm_trigger_playback 191 sound/pci/aw2/aw2-alsa.c .trigger = snd_aw2_pcm_trigger_playback,