To: linux-wireless@vger.kernel.org
From: Danilo <dantard@unizar.es>
Subject: Re: Incoherency in iw (or mac80211 or drivers) behavior -- possible BUG in iwl4965
Date: Thu, 20 Dec 2012 10:25:04 +0000 (UTC)
Message-ID: <loom.20121220T112036-707@post.gmane.org> (sfid-20121220_112523_258414_829A6099)
References: <loom.20121219T172801-213@post.gmane.org>
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Sender: linux-wireless-owner@vger.kernel.org

Danilo <dantard@...> writes:

> 
> Hello,
> I figured out that the command: 
> 
> iw dev wlan0 set bitrates legacy-5 24
> 
> has different behaviors in different devices.
> 
> With iwl3945 wireless cards, it fixes the rate at 24Mbps ALSO for multicast 
> frames while in iwl4965 cards, it doesn't.
> 
> In both cases I tried with ubuntu linux 12.04 and kernel-3.2.0-32-generic 
using  
> iwl4965/iwl_legacy driver for 4965 and iwl3945/iwl_legacy driver for 3945.
> 
> I've also tried with compat-wireless-3.6, same result.
> 
> What's the expected behavior? 
> 
> Thanks in advance,
>  D. Tardioli
> 
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> 

Hello,
I answer myself:
I've tried with ath5k-compatible card and it behaves like iwl3945.
It means that when fixed the bitrates with a single value, the card always use 
that bitrate ALSO for broadcast frames.

The iwl4965 doesn't behave this way.
Any suggestion on how to solve the problem?

Regards.