BTN_GRIPR
[BTN_GRIPL] = "BtnGripL", [BTN_GRIPR] = "BtnGripR",
input_event(input, EV_KEY, BTN_GRIPR, !!(b10 & BIT(0)));
input_event(input, EV_KEY, BTN_GRIPR, !!(b13 & BIT(2)));
input_set_capability(input, EV_KEY, BTN_GRIPR);
input_report_key(dev, BTN_GRIPR, data[18] & BIT(0));
input_report_key(dev, BTN_GRIPR, data[32] & BIT(1));
input_report_key(dev, BTN_GRIPR, data[18] & BIT(0));
input_report_key(dev, BTN_GRIPR, data[22] & BIT(0));
BTN_GRIPR, BTN_GRIPR2, /* paddle upper right, lower right */