Return-path: Received: from mail-wi0-f180.google.com ([209.85.212.180]:44604 "EHLO mail-wi0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932272AbaICNYp convert rfc822-to-8bit (ORCPT ); Wed, 3 Sep 2014 09:24:45 -0400 Received: by mail-wi0-f180.google.com with SMTP id ex7so9800089wid.7 for ; Wed, 03 Sep 2014 06:24:44 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: Date: Wed, 3 Sep 2014 15:24:44 +0200 Message-ID: (sfid-20140903_152449_358906_701720D9) Subject: Re: Cannot get ACS to work with hostapd-2.2 "Unknown event 49" From: Michal Kazior To: Robb Cc: linux-wireless Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On 3 September 2014 15:10, Robb wrote: >> The problem is ath9k_htc driver doesn't support dumping survey data. >> It doesn't implement .get_survey which implies current ACS >> implementation in hostapd will not work. > > I see, driver support != chipset support. According to > http://wireless.kernel.org/en/users/Documentation/acs#Hostapd_setup > the driver does support it, but it is correct that it does not say all > chipsets supported by that driver support ACS. You are making an assumption ath9k == ath9k_htc. This is not correct. I would actually suspect the ath9k_htc *chips* actually are capable of providing the necessary information to create survey dump but the firmware/driver do not support it. Can anyone more familiar with ath9k_htc correct me if I'm wrong? > If the 9271 doesn't support it then I guess it can only be the > AR7010+AR9280 or AR7010+AR9287 right? Any way to know which works? Neither will work as either is handled by the ath9k_htc driver which in turn does not support survey data. Michał