From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from he.sipsolutions.net ([78.46.109.217]:52486 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751080Ab1HHIld (ORCPT ); Mon, 8 Aug 2011 04:41:33 -0400 Subject: Re: IBSS channel support From: Johannes Berg To: p4u Cc: linux-wireless In-Reply-To: <4E32D144.6050304@gmail.com> (sfid-20110729_172709_209159_B8526302) References: <4E32D144.6050304@gmail.com> (sfid-20110729_172709_209159_B8526302) Content-Type: text/plain; charset="UTF-8" Date: Mon, 08 Aug 2011 10:41:30 +0200 Message-ID: <1312792890.4372.8.camel@jlt3.sipsolutions.net> (sfid-20110808_104136_108749_1D81F0E5) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Fri, 2011-07-29 at 17:27 +0200, p4u wrote: > Hi, > This is my first mail to this list, I'm Pau from Barcelona working in > guifi.net (wireless community) > First of all I want to say thank you guys for your amazing job :-) > > Now, I have a little question. Using command "iw phy phy0 info" I can > see that IBSS mode is only avaiable in some channels for 5ghz spectrum. > I have been looking for information about it, but I cannot find from > what depends if some channel can by used in IBSS mode or not. So I think > it depends on the driver and on the regdomain, is it right? > > Also I'm working in some scripts, and I need to know if a channel has > IBSS support or not. The only way I found is with iw command, but pharse > this data is very dirty. Furthermore I can read in the end of iw help: > > "Do NOT screenscrape this tool, we don't consider its output stable." > > So I need another way to get this information. Any idea? Copy bits of the wpa_supplicant or iw code into your code to get this information. That said, iw output _should_ be fairly stable, in this area. johannes