hi, dan and all My wireless card sd8686 reports that wmm_config_change about every 2 seconds though wmm's setting in AP's beacons don't change. seems that driver receive MACREG_INT_CODE_WMM_STATUS_CHANGE event from firmware every 2 seconds. And according to firmware spec v5.1 this event generated when firmware monitors a change in wmm state. This is a result of an ap change in the wmm parameter ie or a change in the operational state of one of the AC queues. However , I can't find any change of AP's wme settings in beacon from the sniffer packets. So why does firmware send this event? thanks for your any comments. -- Best Regards Fzh -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html