media_device_usb_allocate
EXPORT_SYMBOL_GPL(media_device_usb_allocate);
mdev = media_device_usb_allocate(udev, KBUILD_MODNAME, THIS_MODULE);
struct media_device *media_device_usb_allocate(struct usb_device *udev,
mdev = media_device_usb_allocate(usbdev, KBUILD_MODNAME, THIS_MODULE);