snd_hwdep_dsp_image 51 include/sound/hwdep.h struct snd_hwdep_dsp_image *image); snd_hwdep_dsp_image 134 include/uapi/sound/asound.h #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image)