snd_pcm_plug_read_transfer 1460 sound/core/oss/pcm_oss.c 		frames1 = snd_pcm_plug_read_transfer(substream, channels, frames1);
snd_pcm_plug_read_transfer  121 sound/core/oss/pcm_plugin.h snd_pcm_sframes_t snd_pcm_plug_read_transfer(struct snd_pcm_substream *handle,