playback_pointer  346 sound/firewire/dice/dice-pcm.c static snd_pcm_uframes_t playback_pointer(struct snd_pcm_substream *substream)
playback_pointer  300 sound/firewire/motu/motu-pcm.c static snd_pcm_uframes_t playback_pointer(struct snd_pcm_substream *substream)