SNDRV_PCM_HW_PARAM_SUBFORMAT  347 include/sound/pcm_params.h 	snd_mask_min(hw_param_mask_c((p), SNDRV_PCM_HW_PARAM_SUBFORMAT))
SNDRV_PCM_HW_PARAM_SUBFORMAT  317 include/uapi/sound/asound.h #define	SNDRV_PCM_HW_PARAM_LAST_MASK	SNDRV_PCM_HW_PARAM_SUBFORMAT