snd_aw2_pcm_prepare_playback  132 sound/pci/aw2/aw2-alsa.c static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream);
snd_aw2_pcm_prepare_playback  190 sound/pci/aw2/aw2-alsa.c 	.prepare = snd_aw2_pcm_prepare_playback,