ASUS_WMI_DEVID_GPU_FAN_CTRL
status = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL, &value);
ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL))