From owner-freebsd-net@FreeBSD.ORG Fri May 1 20:05:35 2009 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CC2E11065676 for ; Fri, 1 May 2009 20:05:35 +0000 (UTC) (envelope-from gperez@entel.upc.edu) Received: from violet.upc.es (violet.upc.es [147.83.2.51]) by mx1.freebsd.org (Postfix) with ESMTP id 39D638FC1C for ; Fri, 1 May 2009 20:05:34 +0000 (UTC) (envelope-from gperez@entel.upc.edu) Received: from hamilton.upcnetadm.upcnet.es (hamilton.upcnetadm.upcnet.es [147.83.2.240]) by violet.upc.es (8.14.1/8.13.1) with ESMTP id n41K5OqP014346; Fri, 1 May 2009 22:05:24 +0200 Received: from [192.168.100.184] ([88.15.98.27]) by hamilton.upcnetadm.upcnet.es (Lotus Domino Release 5.0.12) with ESMTP id 2009050122053298:162925 ; Fri, 1 May 2009 22:05:32 +0200 Message-ID: <49FB55A3.605@entel.upc.edu> Date: Fri, 01 May 2009 22:03:47 +0200 From: =?ISO-8859-1?Q?Gustau_P=E9rez?= User-Agent: Thunderbird 2.0.0.21 (X11/20090409) MIME-Version: 1.0 To: "Paul B. Mahol" References: <49FA2E3F.9050108@entel.upc.edu> <3a142e750905010655i5e56282eu240e13f2a03dfb02@mail.gmail.com> In-Reply-To: <3a142e750905010655i5e56282eu240e13f2a03dfb02@mail.gmail.com> X-MIMETrack: Itemize by SMTP Server on hamilton/UPC(Release 5.0.12 |February 13, 2003) at 01/05/2009 22:05:33, Serialize by Router on hamilton/UPC(Release 5.0.12 |February 13, 2003) at 01/05/2009 22:05:33, Serialize complete at 01/05/2009 22:05:33 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=ISO-8859-1; format=flowed X-Mail-Scanned: Criba 2.0 + Clamd X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (violet.upc.es [147.83.2.51]); Fri, 01 May 2009 22:05:24 +0200 (CEST) Cc: freebsd-net@freebsd.org Subject: Re: Signal sensitivity problem with if_rum X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 May 2009 20:05:37 -0000 > There is several places where bbp17 is changed. > > Editing the code looking for calls to the function rum_bbp_write, I've been able to find where bbp17 is changed at init. Changing rum_def_bbp[3] (which is reg 17) to values quite 'big' like 0x10 or 0x14 doesn't seem to affect its behaviour. Lowering it even more (0x01for example) sometimes shows more reacheable AP's in range; but signal quality still very bad. Changing RT2573_NOISE_FLOOR doesn't make any change (in terms of signal quality, which remains the same). Any idea if is there anything to change/tune ? Regards, Gus > Last time I was exploring > rum I found that it lacks bbp auto tuning. > [Failed to implement it, because in meantime I broke chip :)] > >