USB_INTERFACE_SUBCLASS_ECM
if (baseClass == USB_INTERFACE_CLASS_CDC && subclass == USB_INTERFACE_SUBCLASS_ECM)
if (baseClass != USB_INTERFACE_CLASS_CDC || subclass != USB_INTERFACE_SUBCLASS_ECM)
|| descriptor->interface_subclass != USB_INTERFACE_SUBCLASS_ECM
|| descriptor->interface_subclass != USB_INTERFACE_SUBCLASS_ECM)