SNDRV_EMUX_IOCTL_RESET_SAMPLES = _IO('H', 0x82),
SNDRV_EMUX_IOCTL_REMOVE_LAST_SAMPLES = _IO('H', 0x83),
SNDRV_EMUX_IOCTL_MEM_AVAIL = _IOW('H', 0x84, int),
SNDRV_EMUX_IOCTL_RESET_SAMPLES = _IO('H', 0x82),
SNDRV_EMUX_IOCTL_REMOVE_LAST_SAMPLES = _IO('H', 0x83),
SNDRV_EMUX_IOCTL_MEM_AVAIL = _IOW('H', 0x84, int),