Return-path: Received: from mail-qy0-f181.google.com ([209.85.216.181]:34955 "EHLO mail-qy0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751987Ab0KDOrx (ORCPT ); Thu, 4 Nov 2010 10:47:53 -0400 Received: by qyk10 with SMTP id 10so1454058qyk.19 for ; Thu, 04 Nov 2010 07:47:52 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: Date: Thu, 4 Nov 2010 10:47:52 -0400 Message-ID: Subject: Re: Adding custom channels to ath5k for researching purposes From: Bob Copeland To: Vadim Cc: linux-wireless@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, Nov 4, 2010 at 9:03 AM, Vadim wrote: > I need to enable 802.11p standard frequencies. How can I accomplish this? I > found that CRDA is responsible for allowed channels. Partially -- the channel list is exported by the driver but CRDA adds additional regulatory restrictions. The driver also imposes certain regulatory restrictions based on the EEPROM data. > So, where can I get binary > frequency/channel database to use my hardware for researching purposes ? You can create your own database, but you may need to modify the driver to disregard the EEPROM settings, with the usual disclaimers: we won't support it and if it breaks you get to keep both pieces. Also note that ath5k only advertises a partial channel list; you can get more via all_channels=1 modparam. We don't do this by default because they make scanning take forever and exceed channel list limits in netlink. -- Bob Copeland %% www.bobcopeland.com