snd_xferi 436 include/sound/asound.h struct snd_xferi { snd_xferi 478 include/sound/asound.h SNDRV_PCM_IOCTL_WRITEI_FRAMES = _IOW('A', 0x50, struct snd_xferi), snd_xferi 479 include/sound/asound.h SNDRV_PCM_IOCTL_READI_FRAMES = _IOR('A', 0x51, struct snd_xferi),