From: Larry Finger <larry.finger@lwfinger.net>
To: Andreas Schwab <schwab@suse.de>
Cc: linux-wireless@vger.kernel.org
Subject: Re: b43: cannot set channel to 12
Date: Sun, 21 Oct 2007 09:34:16 -0500 [thread overview]
Message-ID: <471B6368.7000600@lwfinger.net> (raw)
In-Reply-To: <jesl44n1ax.fsf@sykes.suse.de>
Andreas Schwab wrote:
> Larry Finger <larry.finger@lwfinger.net> writes:
>
>> This is not a b43 problem. The standard loading of mac80211 sets an FCC regulatory domain, i.e. b/g
>> channels 1-11. You need to load mac80211 with a parameter of 'ieee80211_regdom=64'. That will allow
>> b/g channels 1-13. Technically, it sets the regulatory domain to Japan, but channel 14 is not allowed.
>
> Thanks, that works. (But I regard it as a regression.)
That is in the eye of the beholder. For those of us in FCC-land, the default behavior of bcm43xx
(channels 1-14) was a bug _AND_ a violation of regulations and law.
Handling regulatory domain information including allowed channels, power, etc. is still a big
weakness of all MAC layers, both hard and soft.
Larry
next prev parent reply other threads:[~2007-10-21 14:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-17 19:37 b43: cannot set channel to 12 Andreas Schwab
2007-10-17 19:50 ` Larry Finger
2007-10-21 11:40 ` Andreas Schwab
2007-10-21 14:34 ` Larry Finger [this message]
2007-10-18 13:58 ` Michael Buesch
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