SNDRV_CTL_IOCTL_ELEM_LOCK  974 include/uapi/sound/asound.h #define SNDRV_CTL_IOCTL_ELEM_LOCK	_IOW('U', 0x14, struct snd_ctl_elem_id)
SNDRV_CTL_IOCTL_ELEM_LOCK  974 tools/include/uapi/sound/asound.h #define SNDRV_CTL_IOCTL_ELEM_LOCK	_IOW('U', 0x14, struct snd_ctl_elem_id)