Return-path: Received: from s3.sipsolutions.net ([144.76.43.152]:54008 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752959AbaBYMHY (ORCPT ); Tue, 25 Feb 2014 07:07:24 -0500 Message-ID: <1393330040.4170.0.camel@jlt4.sipsolutions.net> (sfid-20140225_130729_700302_B6F153BB) Subject: Re: [PATCH] mac80211: don't downgrade VHT20 to HT20 From: Johannes Berg To: Michal Kazior Cc: linux-wireless@vger.kernel.org Date: Tue, 25 Feb 2014 13:07:20 +0100 In-Reply-To: <1393327628-1078-1-git-send-email-michal.kazior@tieto.com> (sfid-20140225_123231_872299_347E9F99) References: <1393327628-1078-1-git-send-email-michal.kazior@tieto.com> (sfid-20140225_123231_872299_347E9F99) Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, 2014-02-25 at 12:27 +0100, Michal Kazior wrote: > The check led to VHT-capable devices being unable > to pair in VHT20 and were instead paired in HT20. ?? 802.11ac says: --- A VHT STA shall support the following features: [...] — 20 MHz, 40 MHz, and 80 MHz channel widths [...] --- so how can you have a device that's "VHT-capable" but doesn't support 40 MHz? johannes