> I know all these difference clearly, inc_deq() is indeed a common > function for different rings, but lasr_trb() & last_trb_on_last_seg() > inside it use different condition to determine the last trb in an > event ring and an non-event ring; and sorry, i still not find why last > trb in an event ring skipped by H/W according to the current logic. > > Thanks! > Read the specs and the code. David -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
