From owner-freebsd-current@FreeBSD.ORG Tue Oct 8 18:53:35 2013 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 30854F4D for ; Tue, 8 Oct 2013 18:53:35 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-qe0-x236.google.com (mail-qe0-x236.google.com [IPv6:2607:f8b0:400d:c02::236]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id E4792286E for ; Tue, 8 Oct 2013 18:53:34 +0000 (UTC) Received: by mail-qe0-f54.google.com with SMTP id 1so2985997qec.27 for ; Tue, 08 Oct 2013 11:53:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=ziUav52S1b7PITLCv737z5PHqPHM60InrLwhhgeAZNY=; b=uV6wBsIB0LGxnF9iYPSKOPV6dgSpRDxHN9JyqhT6WQqq62U0f7S0VlW/WUMkNabKAF aZHyZeAqWQfGlUqNrGU9egM7qdemD2DdQ1TmO6kzgawm8LzFXZLMjcpyPF1fLMQQvlBg ug0C8d//a4Gy0RnaCmViX13tSefZIYRX3RV1MzISgYVSEJODQAMStsG847X/NWk8gCno Gw8UjhBXQIZIIQmguxn9F4pg+r+E3q+1L9Sfokgi4OX6p6vnZxGF3JweivHzcJiD2mRz 9a7icyP9urkqPBUIWAKN2GNfeOTjFSHPLr+cbM67I4XQ+Chd9QtDyfs4CejT9qqzMwXt wegw== MIME-Version: 1.0 X-Received: by 10.229.75.9 with SMTP id w9mr4411996qcj.0.1381258414075; Tue, 08 Oct 2013 11:53:34 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.224.207.66 with HTTP; Tue, 8 Oct 2013 11:53:34 -0700 (PDT) Received: by 10.224.207.66 with HTTP; Tue, 8 Oct 2013 11:53:34 -0700 (PDT) In-Reply-To: <201310081849.r98InKOn057406@fire.js.berklix.net> References: <201310081849.r98InKOn057406@fire.js.berklix.net> Date: Tue, 8 Oct 2013 11:53:34 -0700 X-Google-Sender-Auth: 1Z9BvUKfFB8GDvkCv1NCxVasYpg Message-ID: Subject: Re: urtwn driver for Edimax EW-7811U WLAN nano USB Adapter From: Adrian Chadd To: "Julian H. Stacey" Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: Alfred Perlstein , freebsd-current X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Oct 2013 18:53:35 -0000 Hi, Note the noise floor differences.. wonder why that is. Rui ported the uwrtn stuff, right? He may be able to help. The driver is recent and its likely there are bugs to shake out. -adrian On Oct 8, 2013 2:49 PM, "Julian H. Stacey" wrote: > > I too am seeing > > urtwn0: timeout waiting for checksum report > & > urtwn0: at uhub3, port 3, addr 4 (disconnected) > (BTW there's no external hub, uhub3 must be inside laptop, > & there's no loose connection, laptop was not touched, all work was remote) > > PS a typical sample comparison of scanned signal strengths > of one of the ~15 nets localy: > 54M -49:-86 100 EP RSN WPA WME run0 big stick, > 54M -69:-95 100 EP RSN WPA WME urtwn0 nano edimax EW-7811Un > so the edimax is typically down about 20 on left column on all ~15 local > nets. > > The aerial must be a minute fraction of the wavelength. > I suppose wavelengths are is approx: > 3 x 10^8 metre/second / 2.4 GHz = 3/2.4 x 10^(8-9) m = 12.5 cm > & ~6cm for 5GHz band. > > Cheers, > Julian > -- > Julian Stacey, BSD Unix Linux C Sys Eng Consultant, Munich > http://berklix.com > Reply below not above, like a play script. Indent old text with "> ". > Send plain text. No quoted-printable, HTML, base64, > multipart/alternative. > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >