From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-ew0-f210.google.com ([209.85.219.210]:48959 "EHLO mail-ew0-f210.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752228AbZF1J0J (ORCPT ); Sun, 28 Jun 2009 05:26:09 -0400 Received: by ewy6 with SMTP id 6so4718841ewy.37 for ; Sun, 28 Jun 2009 02:26:11 -0700 (PDT) Message-ID: <4A473730.3000409@gmail.com> Date: Sun, 28 Jun 2009 10:26:08 +0100 From: Dave MIME-Version: 1.0 To: Johannes Berg CC: "Luis R. Rodriguez" , linux-wireless@vger.kernel.org Subject: Re: [RFC 00/11] cfg80211 connect API + wireless extension move References: <20090624120745.239294066@sipsolutions.net> <43e72e890906241324n341f4988wc6e7325ee389e71e@mail.gmail.com> <4A43E002.2060309@gmail.com> <1246047520.21314.67.camel@johannes.local> In-Reply-To: <1246047520.21314.67.camel@johannes.local> Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: Johannes Berg wrote: > Yes. Mind you, I was not only talking about iwpriv, but also about > things like orinoco's spy support or get/set sensitivity. The latter we > don't quite understand -- can you tell us what it actually does? Spy > support should just be removed, I think. I've had a closer look at this. The sensitivity basically controls the roaming threshold when handled by firmware. It is a firmware setting, though the Agere driver also validates the multicast rates based on it. The drivers/firmware use terms like system scale, AP density, distance between APs. There are 3 valid values: 3 - high density of APs. Maintain 11Mbps by roaming. 2 - medium density of APs. Maintain 2Mbps. 1 - low density. Maintain 1Mbps. Although the values are defined in terms of the usable bitrate, the (Intersil) documentation states that the implementation is based on SNR. Dave.