snd_pcm_playback_ioctl1 502 sound/core/pcm_compat.c return snd_pcm_playback_ioctl1(file, substream, cmd, argp); snd_pcm_playback_ioctl1 2739 sound/core/pcm_native.c return snd_pcm_playback_ioctl1(file, pcm_file->substream, cmd, snd_pcm_playback_ioctl1 2766 sound/core/pcm_native.c result = snd_pcm_playback_ioctl1(NULL, substream, cmd,