From owner-freebsd-usb@FreeBSD.ORG Thu Apr 30 06:34:18 2009 Return-Path: Delivered-To: freebsd-usb@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D926B106567A for ; Thu, 30 Apr 2009 06:34:18 +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 48D008FC14 for ; Thu, 30 Apr 2009 06:34:17 +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 n3U6Y6ZL009989 for ; Thu, 30 Apr 2009 08:34:07 +0200 Received: from [147.83.40.234] ([147.83.40.234]) by hamilton.upcnetadm.upcnet.es (Lotus Domino Release 5.0.12) with ESMTP id 2009043008341517:152671 ; Thu, 30 Apr 2009 08:34:15 +0200 Message-ID: <49F94604.2030306@entel.upc.edu> Date: Thu, 30 Apr 2009 08:32:36 +0200 From: =?ISO-8859-1?Q?Gustau_P=E9rez?= User-Agent: Thunderbird 2.0.0.21 (X11/20090409) MIME-Version: 1.0 To: freebsd-usb@freebsd.org References: <49F4B018.1000703@entel.upc.edu> In-Reply-To: <49F4B018.1000703@entel.upc.edu> X-MIMETrack: Itemize by SMTP Server on hamilton/UPC(Release 5.0.12 |February 13, 2003) at 30/04/2009 08:34:15, Serialize by Router on hamilton/UPC(Release 5.0.12 |February 13, 2003) at 30/04/2009 08:34:15, Serialize complete at 30/04/2009 08:34:15 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]); Thu, 30 Apr 2009 08:34:07 +0200 (CEST) Subject: Re: Signal sensitivity problem with if_rum X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 30 Apr 2009 06:34:19 -0000 > I think this is right place to post, if it is not, please let me know. > > I'm experiencing problems with two different devices using if_rum. > One is a Hercules Guillemot and the other is a Linksys Cisco WUSB54GC > > The first one is about sensitivity, which is very low: for example, > I'm detecting just two or three networks around me (with windows them > detect around 14 or 15 networks) and the reported signal is very low. > Placing the sensor very near to my wireless network AP (which is a > FreeBSD machine with atheros card placing the txpower to 20) reports a > signal quality of 50% or 60%. > Hi again, Any clue ? Can anyone point me where to start looking ? I've been looking in /usr/src/sys/dev/usb/wlan/if_rum.c (and friends) ... Regards, Gus