BTN_TOOL_QUADTAP
[BTN_TOOL_TRIPLETAP] = "ToolTripleTap", [BTN_TOOL_QUADTAP] = "ToolQuadrupleTap",
__set_bit(BTN_TOOL_QUADTAP, input->keybit);
input_event(dev, EV_KEY, BTN_TOOL_QUADTAP, count == 4);
__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
set_bit(BTN_TOOL_QUADTAP, dev1->keybit);
__set_bit(BTN_TOOL_QUADTAP, input->keybit);
__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
input_report_key(dev, BTN_TOOL_QUADTAP, fingers == 4);
input_set_capability(dev, EV_KEY, BTN_TOOL_QUADTAP);