From: Michael Buesch <mb@bu3sch.de>
To: Larry Finger <Larry.Finger@lwfinger.net>
Subject: Re: [REGRESSION] Trouble seeing some wireless networks in latest git
Date: Sun, 27 Apr 2008 17:48:49 +0200
Cc: Priit Laes <plaes@plaes.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	linux-wireless <linux-wireless@vger.kernel.org>
References: <1209288298.3851.12.camel@localhost> <48149F2B.4000503@lwfinger.net>
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On Sunday 27 April 2008 17:43:39 Larry Finger wrote:
> Priit Laes wrote:
> > Hey,
> > 
> > There seems to be some kind of regression in wireless drivers that makes
> > it not possible to see some wireless networks.
> > 
> > This can be seen with both b43 and iwl3945 drivers.
> > 
> > Using Kismet wireless scanner these networks were visible under latest
> > git.
> > All the networks rendered invisible seem to be from channels: 1 (one
> > network visible), 3, 8, 12 and 13. Visible networks are in channels 1,
> > 4, 6, 9 and 11.
> > 
> > Any hints how to debug this further?
> 
> This regression sounds like a perfect place to use git bisection. As it affects 
> b43 and iwl3945, I would suspect some change in mac80211.

Nah, it's a regulatory setting issue.
The default regdomain is US, which only allows chans 1-11.
There's some module parameter to switch the regdomain.
This is not a regression, but a feature.

-- 
Greetings Michael.