ALPS_QUIRK_TRACKSTICK_BUTTONS
if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) &&
priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS;
if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) {
!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) {