USB_TD_OK
td->status = USB_TD_OK;
cc = USB_TD_OK;
cc = USB_TD_OK;
if (cc != USB_TD_OK) {
if (status == USB_TD_OK)
td->status = USB_TD_OK;
pkt->status = USB_TD_OK;
td->status = USB_TD_OK;
td->status = USB_TD_OK;
pkt->status = USB_TD_OK;
td->status = USB_TD_OK;