XUSB_CONTROL_OFFSET
crtlreg = udc->read_fn(udc->addr + XUSB_CONTROL_OFFSET);
udc->write_fn(udc->addr, XUSB_CONTROL_OFFSET, crtlreg);
udc->write_fn(udc->addr, XUSB_CONTROL_OFFSET, crtlreg);
crtlreg = udc->read_fn(udc->addr + XUSB_CONTROL_OFFSET);
udc->write_fn(udc->addr, XUSB_CONTROL_OFFSET, crtlreg);
crtlreg = udc->read_fn(udc->addr + XUSB_CONTROL_OFFSET);
udc->write_fn(udc->addr, XUSB_CONTROL_OFFSET, crtlreg);
crtlreg = udc->read_fn(udc->addr + XUSB_CONTROL_OFFSET);
udc->write_fn(udc->addr, XUSB_CONTROL_OFFSET, crtlreg);