SNDRV_PCM_SUBFORMAT_STD 277 include/uapi/sound/asound.h #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD SNDRV_PCM_SUBFORMAT_STD 2374 sound/core/pcm_native.c err = snd_pcm_hw_constraint_mask(runtime, SNDRV_PCM_HW_PARAM_SUBFORMAT, 1 << SNDRV_PCM_SUBFORMAT_STD); SNDRV_PCM_SUBFORMAT_STD 277 tools/include/uapi/sound/asound.h #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD