From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wi0-f170.google.com ([209.85.212.170]:55867 "EHLO mail-wi0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751257AbaFXHhm (ORCPT ); Tue, 24 Jun 2014 03:37:42 -0400 Received: by mail-wi0-f170.google.com with SMTP id cc10so5396339wib.1 for ; Tue, 24 Jun 2014 00:37:41 -0700 (PDT) Message-ID: <53A92ACB.8080005@gmail.com> (sfid-20140624_093745_506059_CB3B2597) Date: Tue, 24 Jun 2014 10:37:47 +0300 From: Emmanuel Grumbach MIME-Version: 1.0 To: "Luis R. Rodriguez" , Victor CC: linux-wireless@vger.kernel.org Subject: Re: No channels available (no IR) in 5Ghz band for intel 7260-ac References: <20140624005030.GI1390@garbanzo.do-not-panic.com> In-Reply-To: <20140624005030.GI1390@garbanzo.do-not-panic.com> Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: On 06/24/2014 03:50 AM, Luis R. Rodriguez wrote: > On Mon, Jun 23, 2014 at 10:55:48PM +0200, Victor wrote: >> Hello, first of all i'm not sure if this is the proper place to ask >> since it seems mostly dev-related, but i have been looking everywhere >> trying to find a solution without luck, so i'm not sure if i >> encountered some kind of bug. >> >> Context: Setup of wireless AP using an intel 7260-ac on 5Ghz+ band, linux 3.15.1 This configuration is not supported. >> >> Problem found: the system shows all channels for Ghz band as (no IR), >> so they can't be used > > NO-IR means you can't initiate radiation, it doesn't mean they are > disabled. The NO-IR flag then means you cannot use modes of operation > that require you to initiate radiation first, there are two ways that > can happen: > > * beconing -- AP, IBSS, Mesh, P2P master mode > * active scanning > > You are still able to do passive scanning. The NO-IR flag can be > lifted from channels if the driver does like the idea of trusting > beacon hints: > > http://wireless.kernel.org/en/developers/Regulatory/processing_rules#Beacon_hints > > If the driver does not like those then you won't get the NO-IR flag > lifted when a beacon is found. There device follows the desire by > the silicon manufacturer and whoever deploys the device and integrates > it into your system so anything beyond this should be checked with > Intel folks. > > Luis > -- > To unsubscribe from this list: send the line "unsubscribe linux-wireless" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >