snd_pcm_delay 18 sound/core/pcm_compat.c err = snd_pcm_delay(substream, &delay); snd_pcm_delay 2965 sound/core/pcm_native.c err = snd_pcm_delay(substream, &delay); snd_pcm_delay 3055 sound/core/pcm_native.c return snd_pcm_delay(substream, frames);