Continuously polling registers with the PL2303 usb serial adapter eventually results in usb_subimit_urb failed with result -19 (ENODEV) but reconnects immediately. occurrences are random. tried with two different PL2303 devices with the same result. -- 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