HCD_MASK
if ((driver->flags & HCD_MASK) < HCD_USB3) {
if ((driver->flags & HCD_MASK) < HCD_USB3)
if ((hcd_driver_flags & HCD_MASK) < HCD_USB3)
hcd->speed = driver->flags & HCD_MASK;
hcd->has_tt = (hcd->driver->flags & HCD_MASK) != HCD_USB11;