xhci_device_done
static void xhci_device_done(struct usb_xfer *, usb_error_t);
xhci_device_done(xfer, USB_ERR_TIMEOUT);
xhci_device_done(xfer, USB_ERR_CANCELLED);
xhci_device_done(pepext->xfer[i],
xhci_device_done(xfer, err);