snd_ctl_elem_value32 157 sound/core/control_compat.c struct snd_ctl_elem_value32 { snd_ctl_elem_value32 387 sound/core/control_compat.c SNDRV_CTL_IOCTL_ELEM_READ32 = _IOWR('U', 0x12, struct snd_ctl_elem_value32), snd_ctl_elem_value32 388 sound/core/control_compat.c SNDRV_CTL_IOCTL_ELEM_WRITE32 = _IOWR('U', 0x13, struct snd_ctl_elem_value32),