PS2PP_EXTRA_BTN
PS2PP_EXTRA_BTN | PS2PP_NAV_BTN | PS2PP_HWHEEL },
PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
PS2PP_EXTRA_BTN | PS2PP_NAV_BTN | PS2PP_HWHEEL },
PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
PS2PP_TASK_BTN | PS2PP_EXTRA_BTN }
if (model_info->features & PS2PP_EXTRA_BTN)