ASUS_WMI_DEVID_CAMERA_LED
asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CAMERA_LED, &result);
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_CAMERA_LED, state, NULL);
if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CAMERA_LED)) {