On Thu, 2010-05-20 at 21:28 +0200, Jaroslav Fojtik wrote: > Dear Bob, > > > $ sudo ifconfig wlan0 up > > $ sudo iw dev wlan0 scan > > I have typed: > > ifconfig wlan0 down > ifconfig wlan0 up > iwlist wlan0 scanning > (I do not have installed iw) I think you should install iw and use it instead. Ideally, iwlist should work as well, but iw would provide a useful datapoint. > But when an interface wlan0 become associated, it refuses scanning. > > root@dvouramenna:~# iwlist wlan0 scanning > wlan0 Interface doesn't support scanning : Operation not supported > > > Is this bug or feature? It looks like a bug. Even if something is preventing scanning, the error code should be -EBUSY (device busy). > MadWifi can scan even when interface is associated. > ipw2200bg can also scan when it is associated. The same is true for ath9k, but I cannot test ath5k at the moment. mac80211 does a considerable effort to allow scanning while associated. -- Regards, Pavel Roskin -- 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