ABS_WHEEL
evdev_push_abs(sc->sc_evdev, ABS_WHEEL, pos);
evdev_push_abs(sc->sc_evdev, ABS_WHEEL, 0);
evdev_support_abs(sc->sc_evdev, ABS_WHEEL, 0, WACOM_RING_MAX,
[ABS_WHEEL] = "ABS_WHEEL",
{ .name = "ABS_WHEEL", .value = ABS_WHEEL },