dev_set_name
ret = dev_set_name(dev, "%s.%s.%d", modname, auxdev->name, auxdev->id);
ret = dev_set_name(class_dev, "%s", device->name);
dev_set_name(&ucm_dev->dev, "ucm%d", ucm_dev->devnum);
dev_set_name(&uverbs_dev->dev, "uverbs%d", uverbs_dev->devnum);