From owner-freebsd-questions@freebsd.org Fri Sep 11 12:29:17 2015 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 479149CCDD6 for ; Fri, 11 Sep 2015 12:29:17 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from mx02.qsc.de (mx02.qsc.de [213.148.130.14]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 0C04E1372 for ; Fri, 11 Sep 2015 12:29:16 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from r56.edvax.de (port-92-195-125-111.dynamic.qsc.de [92.195.125.111]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx02.qsc.de (Postfix) with ESMTPS id A2C0927873; Fri, 11 Sep 2015 14:29:07 +0200 (CEST) Received: from r56.edvax.de (localhost [127.0.0.1]) by r56.edvax.de (8.14.5/8.14.5) with SMTP id t8BCT6uZ002461; Fri, 11 Sep 2015 14:29:06 +0200 (CEST) (envelope-from freebsd@edvax.de) Date: Fri, 11 Sep 2015 14:29:06 +0200 From: Polytropon To: Ernie Luzar Cc: freebsd-questions Subject: Re: USB physical ports Message-Id: <20150911142906.3da7c16b.freebsd@edvax.de> In-Reply-To: <55F1A507.70402@gmail.com> References: <55F1A507.70402@gmail.com> Reply-To: Polytropon Organization: EDVAX X-Mailer: Sylpheed 3.1.1 (GTK+ 2.24.5; i386-portbld-freebsd8.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Sep 2015 12:29:17 -0000 On Thu, 10 Sep 2015 11:43:03 -0400, Ernie Luzar wrote: > I have 6 physical ports on my PC box. The boot time messages seem to say > that one of those ports is 480Mbps High Speed USB v2.0. > > How do I determine which physical USB port is the 480Mbps High Speed port? Usually there are two ways: First, there is the visual inspection of the plastic bar inside the ports. They are color coded black, white, or blue, which refers to USB 1, 2, or 3 respectively. Second, you use a device to test the actual port speeds where the device can saturate the port's speed _and_ is compatible to both USB 1 and 2 (and maybe 3) standard. The port where you reach the maximum speed of approx. 500 MB/s (in terms of magnitude) is the high speed port. Then you can use a colored sticker to clearly mark that port. :-) -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...