SNDRV_HWDEP_IOCTL_INFO 147 include/uapi/sound/asound.h #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) SNDRV_HWDEP_IOCTL_INFO 147 tools/include/uapi/sound/asound.h #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info)