.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
.mmap = drm_mmap,
# if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)
/* This shouldn't be necessary even for old kernels as there is
* nothing sensible to mmap. But we play safe and keep it for
* legacy reasons. */
# endif
.poll = drm_poll,
};
#endif