From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1SRj8D-0006rm-7T for garchives@archives.gentoo.org; Tue, 08 May 2012 12:03:05 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 4B19FE0798 for ; Tue, 8 May 2012 12:03:04 +0000 (UTC) Received: from mail.partycode.de (mail.partycode.de [78.47.240.236]) by pigeon.gentoo.org (Postfix) with ESMTP id 08E7EE07A1 for ; Tue, 8 May 2012 10:56:09 +0000 (UTC) Received: from p5b2f1568.dip0.t-ipconnect.de ([91.47.21.104] helo=[192.168.1.135]) by mail.partycode.de with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.72) (envelope-from ) id 1SRi5Q-0005g0-Ar; Tue, 08 May 2012 12:56:08 +0200 Message-ID: <4FA8FBC2.7030804@digital-trauma.de> Date: Tue, 08 May 2012 12:56:02 +0200 From: =?ISO-8859-1?Q?Thomas_R=F6sner?= User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-amd64@lists.gentoo.org Reply-to: gentoo-amd64@lists.gentoo.org MIME-Version: 1.0 To: gentoo-amd64@lists.gentoo.org CC: Michael Scherer Subject: Re: [gentoo-amd64] Drivers For USB HDD References: <20120506142920.8c2e0f06.frank.peters@comcast.net> <4FA7A94E.7010009@digital-trauma.de> <20120507093458.a9840e1f.frank.peters@comcast.net> <523B48F0E3404A6E8DCE0D6FAAD6D780@mic2> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam_score: -2.9 X-Spam_score_int: -28 X-Spam_bar: -- X-Archives-Salt: 31c9d8f3-a79a-44d6-9c12-cfad59566965 X-Archives-Hash: 0beeed256c0315fe42a743e24da2529d Am 07.05.2012 23:58, schrieb Michael Scherer: > meaning the controller then needs different outlets for 3.0 and 2.0 > cables, > so I need to use 3.0 cable on the 3.0 one, but 2.0 cable on the other. Not quite :). A 3.0 USB client (like a 3.0 HDD) will usually come with a new 3.0 USB cable with additional contacts. The client head is different than with a USB 2.0 cable. The master head (that plugs into the controller, your computer or hub) is backwards compatible - if you plug it into an USB 2.0 port, the additional contacts won't connect and the HDD will speak USB 2.0. The same goes for a 2.0 client in a 3.0 port. So, controller side, you can plug everything into everything. Only client side you have a new outlet (which is good because it prevents you from using an old 2.0 cable and falling back to slow speed if both your PC and client speak USB 3.0) Regards, Thomas