snd_aw2_pcm_prepare_capture 133 sound/pci/aw2/aw2-alsa.c static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream); snd_aw2_pcm_prepare_capture 202 sound/pci/aw2/aw2-alsa.c .prepare = snd_aw2_pcm_prepare_capture,