snd_pcm_hw_constraint_mask 838 include/sound/pcm.h int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, snd_pcm_hw_constraint_mask 1930 sound/core/pcm_native.c err = snd_pcm_hw_constraint_mask(runtime, SNDRV_PCM_HW_PARAM_ACCESS, mask); snd_pcm_hw_constraint_mask 1938 sound/core/pcm_native.c err = snd_pcm_hw_constraint_mask(runtime, SNDRV_PCM_HW_PARAM_SUBFORMAT, 1 << SNDRV_PCM_SUBFORMAT_STD);