SNDRV_PCM_HW_PARAM_SUBFORMAT 305 include/sound/asound.h #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT SNDRV_PCM_HW_PARAM_SUBFORMAT 807 include/sound/pcm.h #define params_subformat(p) snd_mask_min(hw_param_mask((p), SNDRV_PCM_HW_PARAM_SUBFORMAT)) SNDRV_PCM_HW_PARAM_SUBFORMAT 1363 sound/core/pcm_lib.c SNDRV_PCM_HW_PARAM_SUBFORMAT, SNDRV_PCM_HW_PARAM_SUBFORMAT 44 sound/core/pcm_native.c unsigned int masks[SNDRV_PCM_HW_PARAM_SUBFORMAT - SNDRV_PCM_HW_PARAM_SUBFORMAT 1938 sound/core/pcm_native.c err = snd_pcm_hw_constraint_mask(runtime, SNDRV_PCM_HW_PARAM_SUBFORMAT, 1 << SNDRV_PCM_SUBFORMAT_STD);