snd_aw2_pcm_playback_open  125 sound/pci/aw2/aw2-alsa.c static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream);
snd_aw2_pcm_playback_open  185 sound/pci/aw2/aw2-alsa.c 	.open = snd_aw2_pcm_playback_open,