Return-path: Received: from mail-ie0-f180.google.com ([209.85.223.180]:57328 "EHLO mail-ie0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932215AbaAWOt7 (ORCPT ); Thu, 23 Jan 2014 09:49:59 -0500 Received: by mail-ie0-f180.google.com with SMTP id at1so1218478iec.11 for ; Thu, 23 Jan 2014 06:49:58 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <1390478759.4189.91.camel@porter.coelho.fi> References: <1390478759.4189.91.camel@porter.coelho.fi> Date: Thu, 23 Jan 2014 09:49:58 -0500 Message-ID: (sfid-20140123_155016_666558_792868BB) Subject: Re: wl12xx force lower bitrate From: Charles To: Luca Coelho Cc: linux-wireless Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: >> I'm using the wl12xx-spi driver with a TI wl1271 chipset. In my >> application, range is more important than throughput, so I want to >> force a lower bitrate (like 802.11b speeds at the fastest.) >> >> None of the commands for doing this seem to have any effect, however. >> I've tried both iwconfig and iw. >> >> Is forcing a lower bitrate possible with this driver / firmware / chipset? > > Rate control should do this automatically. If you have good signal > conditions, it will use the highest possible rate. If things start to > degrade (as if you get further away from the AP), the rate will drop. > I know about automatic rate control. But in our experience, 802.11b adapters perform better at the margins (of range), possibly because their rate is not jumping around as much. I know there is allowance within iwconfig and iw for fixing bitrate, but I have yet to find an adapter/driver where this functionality works.