> update the last_busy time in the completion of every input URB). When > the driver is throttled no URBs will be submitted, so the usage count > will remain at 0 with no effort on the part of throttle(). You can still get modem changes (set_mctrl), break etc with the port throttled, or indeed output. -- 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