Symbol: DRM_IOCTL_WAIT_VBLANK
sys/dev/drm/drm_ioctl.c
639
DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank_ioctl, DRM_UNLOCKED),
test/debug/testvblank.c
29
if (ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vblank) < 0)