Return-path: Received: from mail-bk0-f44.google.com ([209.85.214.44]:50328 "EHLO mail-bk0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757843Ab3AIOKz (ORCPT ); Wed, 9 Jan 2013 09:10:55 -0500 Received: by mail-bk0-f44.google.com with SMTP id w11so927843bku.17 for ; Wed, 09 Jan 2013 06:10:53 -0800 (PST) From: Christian Lamparter To: Simon Wunderlich Subject: Re: [PATCH] nl80211: allow ad-hoc to set WMM parameters from outside Date: Wed, 9 Jan 2013 15:10:49 +0100 Cc: Adrian Chadd , Johannes Berg , linux-wireless@vger.kernel.org, linville@tuxdriver.com, mathias.kretschmer@fokus.fraunhofer.de, Simon Wunderlich References: <1354042232-32428-1-git-send-email-siwu@hrz.tu-chemnitz.de> <20130109131540.GA22836@pandem0nium> In-Reply-To: <20130109131540.GA22836@pandem0nium> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Message-Id: <201301091510.49723.chunkeey@googlemail.com> (sfid-20130109_151059_114953_0353FAF6) Sender: linux-wireless-owner@vger.kernel.org List-ID: On Wednesday, January 09, 2013 02:15:40 PM Simon Wunderlich wrote: > On Tue, Jan 08, 2013 at 09:28:44AM -0800, Adrian Chadd wrote: > > I still populate the WME fields; I need to "fix" paying attention to > > them in the adhoc case. > > Applying the EDCA parameters in the hardware and sending "standard" WME IEs > (without EDCA parameter sets) is understandable, Linux does that too. Well, the WFA WMM Specification v1.2 costs $99 (last time I checked, which wasn't too long ago). However Johannes told me that the WMM IE should not be added to IBSS beacons. However, we can still pack some EDCA parameters into beacons, probe/(re-)assoc resps because there's an alternative IE. The "EDCA Parameter Set IE" is part of 802.11-2012 8.4.2.31 - The Element ID is 12 [Table 8-54]. [Note: It's worth mentioning that the WFA WMM spec was just a stop-gap measure until 802.11e was ready. Here's an article which explains this weird bit of history, unfortunately it is in German ] Regards, Chr