USB_GET_FULL_DESC
error = ioctl(pdev->file_ctrl, IOUSB(USB_GET_FULL_DESC), &gen_desc);
error = ioctl(pdev->file_ctrl, IOUSB(USB_GET_FULL_DESC), &gen_desc);
args->cmd = USB_GET_FULL_DESC;
case USB_GET_FULL_DESC:
_IOC_NEWTYPE(USB_GET_FULL_DESC, struct usb_gen_descriptor32)