The IOCTLs exist in  sys/arch/hpcmips/dev/ite8181.c, but do they work?

djb

int
ite8181_ioctl(v, cmd, data, flag, l)
...
case WSDISPLAYIO_PARAM_BRIGHTNESS:
			VPRINTF(("ite8181_ioctl: SET:BRIGHTNESS\n"));
			ite8181_init_brightness(sc, 0);
			if (dispparam->curval < 0 ||
			    sc->sc_max_brightness < dispparam->curval)
				return (EINVAL);
			if (sc->sc_max_brightness > 0) {
				int org = sc->sc_brightness;
				ite8181_set_brightness(sc, dispparam->curval);
				VPRINTF(("ite8181_ioctl: SET:BRIGHTNESS"
				    " org=%d, current=%d\n", org,
				    sc->sc_brightness));
				return 0;