snd_pcm_ioctl_xfern_compat 522 sound/core/pcm_compat.c return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); snd_pcm_ioctl_xfern_compat 524 sound/core/pcm_compat.c return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp);