Return-path: Received: from mail2.candelatech.com ([208.74.158.173]:33025 "EHLO mail2.candelatech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754273AbcFTUlL (ORCPT ); Mon, 20 Jun 2016 16:41:11 -0400 Subject: Re: ath9k: Support 4.9Ghz channels on AR9580 adapter. To: Kalle Valo References: <300e3070916441609ff73ea8e06ddb77@euamsexm01a.eu.qualcomm.com> Cc: linux-wireless@vger.kernel.org, ath9k-devel@lists.ath9k.org From: Ben Greear Message-ID: <576854E5.5030206@candelatech.com> (sfid-20160620_224131_439949_979E2C1C) Date: Mon, 20 Jun 2016 13:41:09 -0700 MIME-Version: 1.0 In-Reply-To: <300e3070916441609ff73ea8e06ddb77@euamsexm01a.eu.qualcomm.com> Content-Type: text/plain; charset=utf-8; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 06/20/2016 01:34 PM, Kalle Valo wrote: > Ben Greear wrote: >> From: Ben Greear >> >> NOTE: These channels must not be used in most regulatory >> domains unless you have a license from the FCC or similar! >> >> A proper regulatory database is also required to actually use >> these channels. >> >> Signed-off-by: Ben Greear > > I feel that the license is a problem and this doesn't belong to the kernel. > The patch has been dropped. It's not a lot different from having to be in normal FCC regulations w/regard to DFS channels, tx power, and such, but maybe having driver support is considered to make it too easy for users to hack around restrictions? Another part of this is that Cisco APs, at least, use fractional center frequencies (4942.5, for instance) when using 5Mhz bandwidths on 4.9Ghz channels, and that requires more patches that I don't think I even bothered to post. I'll keep this in my trees, someone needing it can just clone it and/or borrow patches as needed. Thanks, Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com