snd_hwdep_dsp_status 112 include/sound/asound.h struct snd_hwdep_dsp_status { snd_hwdep_dsp_status 132 include/sound/asound.h SNDRV_HWDEP_IOCTL_DSP_STATUS = _IOR('H', 0x02, struct snd_hwdep_dsp_status), snd_hwdep_dsp_status 194 sound/core/hwdep.c static int snd_hwdep_dsp_status(struct snd_hwdep *hw,