From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from s3.sipsolutions.net ([5.9.151.49]:48418 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754090AbcCOOKd (ORCPT ); Tue, 15 Mar 2016 10:10:33 -0400 Message-ID: <1458051029.2871.14.camel@sipsolutions.net> (sfid-20160315_151039_044855_E50082E1) Subject: Re: [PATCH-v2] mac80211: Let VHT work on 2.4Ghz From: Johannes Berg To: greearb@candelatech.com, linux-wireless@vger.kernel.org Date: Tue, 15 Mar 2016 15:10:29 +0100 In-Reply-To: <1457633336-27898-1-git-send-email-greearb@candelatech.com> References: <1457633336-27898-1-git-send-email-greearb@candelatech.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, 2016-03-10 at 10:08 -0800, greearb@candelatech.com wrote: > From: Ben Greear > > ath10k supports VHT on 2.4Ghz band. I still don't think this is the right thing to do. Most implementations seem to use the BRCM vendor IE to advertise "VHT" features on 2.4 GHz, since the spec requires 5 GHz for the real ones. The combination of ath10k with mac80211 seems to be broken in that regard right now, since mac80211 didn't expect drivers to set the capabilities for 2.4 GHz band. I guess we can get away with using the regular capabilities towards userspace, but as far as the IEs are concerned we should probably use the BRCM ones. johannes