dev->class_dev = class_device_create(usb_device_class,
dev->class_dev = class_device_create(usb_device_class, NULL,
void usbdev_add(struct usb_device *dev){	int minor = ((dev->bus->busnum-1) * 128) + (dev->devnum-1);	dev->class_dev = class_device_create(usb_device_class,				MKDEV(USB_DEVICE_MAJOR, minor), &dev->dev,				"usbdev%d.%d", dev->bus->busnum, dev->devnum);	dev->class_dev->class_data = dev;}