to_usb_device_driver
udriver = to_usb_device_driver(udev->dev.driver);
udriver = to_usb_device_driver(udev->dev.driver);
struct usb_device_driver *udriver = to_usb_device_driver(dev->driver);
struct usb_device_driver *udriver = to_usb_device_driver(dev->driver);
udrv = to_usb_device_driver(drv);
udrv = to_usb_device_driver(drv);
udriver = to_usb_device_driver(udev->dev.driver);