drm_mode_crtc     751 include/uapi/drm/drm.h #define DRM_IOCTL_MODE_GETCRTC		DRM_IOWR(0xA1, struct drm_mode_crtc)
drm_mode_crtc     752 include/uapi/drm/drm.h #define DRM_IOCTL_MODE_SETCRTC		DRM_IOWR(0xA2, struct drm_mode_crtc)