get_description
status_t status = get_description(controller, &description);
return get_description(controller, (multi_description*)arg);
status = get_description(cookie, &description);
case B_MULTI_GET_DESCRIPTION: return get_description(cookie, arg);
case B_MULTI_GET_DESCRIPTION: return get_description(cookie, arg);
status_t status = get_description(fDevice, &fDescription);
status_t get_description(int device, multi_description* description);