From owner-cvs-src@FreeBSD.ORG Mon Mar 21 01:55:07 2005 Return-Path: Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3504616A4CE; Mon, 21 Mar 2005 01:55:07 +0000 (GMT) Received: from srv1.cosmo-project.de (srv1.cosmo-project.de [213.83.6.106]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6106443D2D; Mon, 21 Mar 2005 01:55:06 +0000 (GMT) (envelope-from ticso@cicely12.cicely.de) Received: from cicely5.cicely.de (cicely5.cicely.de [10.1.1.7]) (authenticated bits=0)j2L1t2Hw003390 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=OK); Mon, 21 Mar 2005 02:55:04 +0100 (CET) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (cicely12.cicely.de [IPv6:3ffe:400:8d0:301::12]) by cicely5.cicely.de (8.12.10/8.12.10) with ESMTP id j2L1sdVK026262 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 21 Mar 2005 02:54:40 +0100 (CET) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (localhost [127.0.0.1]) by cicely12.cicely.de (8.12.11/8.12.11) with ESMTP id j2L1sdkU070558; Mon, 21 Mar 2005 02:54:39 +0100 (CET) (envelope-from ticso@cicely12.cicely.de) Received: (from ticso@localhost) by cicely12.cicely.de (8.12.11/8.12.11/Submit) id j2L1sd7t070557; Mon, 21 Mar 2005 02:54:39 +0100 (CET) (envelope-from ticso) Date: Mon, 21 Mar 2005 02:54:39 +0100 From: Bernd Walter To: Ian Dowse Message-ID: <20050321015438.GP53520@cicely12.cicely.de> References: <20050321003007.GO53520@cicely12.cicely.de> <200503210131.aa69950@salmon.maths.tcd.ie> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200503210131.aa69950@salmon.maths.tcd.ie> X-Operating-System: FreeBSD cicely12.cicely.de 5.2-CURRENT alpha User-Agent: Mutt/1.5.6i X-Spam-Status: No, hits=-4.9 required=3.0 tests=BAYES_00 autolearn=no version=2.64 X-Spam-Report: * -4.9 BAYES_00 BODY: Bayesian spam probability is 0 to 1% * [score: 0.0000] X-Spam-Checker-Version: SpamAssassin 2.64 (2004-01-11) on cicely12.cicely.de cc: cvs-src@freebsd.org cc: src-committers@freebsd.org cc: ticso@cicely.de cc: cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/dev/usb uhub.c X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: ticso@cicely.de List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Mar 2005 01:55:07 -0000 On Mon, Mar 21, 2005 at 01:31:57AM +0000, Ian Dowse wrote: > In message <20050321003007.GO53520@cicely12.cicely.de>, Bernd Walter writes: > >On Sun, Mar 20, 2005 at 11:45:00PM +0000, Ian Dowse wrote: > >> Log: > >> Root hubs don't have transaction translators, so skip printing the > >> message about them if the hub depth is zero. > > > >This is only true for the current hardware we support. > >AFAIK the Philips ISP1761 is a EHCI derived USB On-The-Go controller > >without companion controllers using a TT on the root hub. > > Ok, thanks for the information - I guess we may need a different > way to detect whether transaction translation is present. Although, > just looking for information on the ISP1761, it might actually have > a real non-root hub built in, as it claims to be EHCI compliant. I stay corrected - you are absolutely right. The datasheet says: The ISP1761 implements an EHCI that has an internal port--the Root Hub port (not available externally)--on which the internal hub is connected. The three external ports are always routed to the internal hub. The internal hub is a Hi-Speed USB hub including the TT. So from the drivers standpoint it's only special in that is has no companion controllers. Well - they mention some special handling in their data sheet as well, but I asume that's more for optimizing in embedded designs. -- B.Walter BWCT http://www.bwct.de bernd@bwct.de info@bwct.de