From: Pavel Roskin <proski@gnu.org>
To: Jaroslav Fojtik <jafojtik@seznam.cz>
Cc: linux-wireless@vger.kernel.org, Bob Copeland <me@bobcopeland.com>
Subject: Re: How to scan APs with ATH5k?
Date: Thu, 20 May 2010 17:53:31 -0400 [thread overview]
Message-ID: <1274392411.7054.6.camel@mj> (raw)
In-Reply-To: <4BF58D72.22852.D1D2D@jafojtik.seznam.cz>
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
next prev parent reply other threads:[~2010-05-20 21:53 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-19 19:17 [PATCH v2 7/7] rt2x00: Fix HT40 operation in rt2800 Gertjan van Wingerde
2010-05-19 19:19 ` Ivo Van Doorn
2010-05-20 6:52 ` Helmut Schaa
2010-05-20 6:00 ` How to scan APs with ATH5k? Jaroslav Fojtik
[not found] ` <AANLkTim90zZxvcwT9joVAqO1oDzk-jCaRCQAd0Cfu3N0@mail.gmail.com>
2010-05-20 19:28 ` Jaroslav Fojtik
2010-05-20 21:53 ` Pavel Roskin [this message]
2010-05-20 22:46 ` Bob Copeland
2010-05-21 20:00 ` Jaroslav Fojtik
2010-05-23 11:21 ` How to scan APs with ATH5k? - compat-wireless-2010-05-21 Jaroslav Fojtik
2010-05-24 18:44 ` Luis R. Rodriguez
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