SNDRV_CTL_IOCTL_HWDEP_INFO 984 include/uapi/sound/asound.h #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) SNDRV_CTL_IOCTL_HWDEP_INFO 984 tools/include/uapi/sound/asound.h #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info)