snd_pcm_sw_params 372 include/sound/asound.h struct snd_pcm_sw_params { snd_pcm_sw_params 462 include/sound/asound.h SNDRV_PCM_IOCTL_SW_PARAMS = _IOWR('A', 0x13, struct snd_pcm_sw_params), snd_pcm_sw_params 515 sound/core/pcm_native.c static int snd_pcm_sw_params(struct snd_pcm_substream *substream,