iuu_led
if (iuu_led(port, 0xF000, 0, 0, 0xFF) < 0)
iuu_led(port, 0, 0xF000, 0, 0xFF);
iuu_led(port, 0, 0, 0xF000, 0xFF);
iuu_led(port, 0xF000, 0xF000, 0, 0xFF);