/* send zero lzngth packet on the ctl pipe  */
void usb_ctrlstatustx(usb_core_instance *pdev)
/* send zero lzngth packet on the ctl pipe  */
void usb_ctrlstatustx(usb_core_instance *pdev)
{
    pdev->dev.device_state = USB_EP0_STATUS_IN;
    usb_deveptx(pdev, 0U, pdev->dev.setup_pkt_buf, 0U);
}