DRM_IOCTL_INFO_BUFS 850 include/uapi/drm/drm.h #define DRM_IOCTL_INFO_BUFS DRM_IOWR(0x18, struct drm_buf_info) DRM_IOCTL_INFO_BUFS 850 tools/include/uapi/drm/drm.h #define DRM_IOCTL_INFO_BUFS DRM_IOWR(0x18, struct drm_buf_info)