static void usbredir_instance_init(Object *obj)
{
    USBDevice *udev = USB_DEVICE(obj);
    USBRedirDevice *dev = USB_REDIRECT(udev);

    device_add_bootindex_property(obj, &dev->bootindex,
                                  "bootindex", NULL,
                                  &udev->qdev);
}
static void usbredir_instance_init(Object *obj)
{
    USBDevice *udev = USB_DEVICE(obj);
    USBRedirDevice *dev = USB_REDIRECT(udev);

    device_add_bootindex_property(obj, &dev->bootindex,
                                  "bootindex", NULL,
                                  &udev->qdev);
}