Return-path: Received: from mail-ob0-f180.google.com ([209.85.214.180]:64318 "EHLO mail-ob0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752161Ab3FJOyK convert rfc822-to-8bit (ORCPT ); Mon, 10 Jun 2013 10:54:10 -0400 Received: by mail-ob0-f180.google.com with SMTP id eh20so9909221obb.25 for ; Mon, 10 Jun 2013 07:54:09 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <20130610182317.3beb2841@lenovo-laptop> References: <20130610182317.3beb2841@lenovo-laptop> Date: Mon, 10 Jun 2013 16:54:09 +0200 Message-ID: (sfid-20130610_165413_805177_5B151BC7) Subject: Re: [DEFECT] iw: No output if passive scanning is requested From: =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= To: =?UTF-8?Q?Fran=C3=A7ois_Ravaillac?= Cc: linux-wireless , b43-dev Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: 2013/6/10 François Ravaillac : > Using b43 driver with newer kernels (namely, 3.8-1-686-pae from Debian > and 3.10.0-rc4 from git) it isn't possible to perform passive scanning > (in 2.4GHz band) using 'iw' tool. The command 'iw dev wlan0 scan > passive' doesn't print any output. At the same time, a usual scan with > sending probe requests ('iw wlan0 scan' or 'iwlist wlan0 scan') does > work as expected. > > The radio module I'm using is > 05:00.0 Network controller [0280]: Broadcom Corporation BCM4312 > 802.11b/g LP-PHY [14e4:4315] (rev 01) > > Copy of dmesg, lspci, lsmod, 'iw phy0 info' outputs and kernel config file > is attached. > > > P.S. I'm not a developer nor programmer, but I'm ready to help to make > linux better :) Hm, this is very interesting. Recently I've discovered problem with finding AP working on channel 13. It turned out to be a regression caused by > Scanning regression since "cfg80211: use DS or HT operation IEs to determine BSS channel" http://lists.infradead.org/pipermail/b43-dev/2013-March/003003.html I think it can be related. I'll try to take a look at this in free time, but don't promise anything soon. Thanks for your report anyway. -- Rafał