HID_CONNECT_DRIVER
ret = hid_hw_start(hdev, HID_CONNECT_DRIVER);
if (connect_mask & HID_CONNECT_DRIVER)
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | HID_CONNECT_DRIVER);
ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW | HID_CONNECT_DRIVER);
connect_mask |= HID_CONNECT_DRIVER;