From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750988AbVH1EpS (ORCPT ); Sun, 28 Aug 2005 00:45:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751105AbVH1EpS (ORCPT ); Sun, 28 Aug 2005 00:45:18 -0400 Received: from mx1.redhat.com ([66.187.233.31]:38533 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S1750988AbVH1EpR (ORCPT ); Sun, 28 Aug 2005 00:45:17 -0400 Date: Sat, 27 Aug 2005 21:45:03 -0700 From: Pete Zaitcev To: Alan Stern Cc: dio@qwasartech.com, linux-kernel@vger.kernel.org, linux-usb-devel@lists.sourceforge.net Subject: Re: [linux-usb-devel] Re: USB EHCI Problem with Low Speed Devices on kernel 2.6.11+ Message-Id: <20050827214503.03056887.zaitcev@redhat.com> In-Reply-To: References: <20050827102135.4e0b035d.zaitcev@redhat.com> Organization: Red Hat, Inc. X-Mailer: Sylpheed version 2.0.0 (GTK+ 2.8.0; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 27 Aug 2005 22:57:45 -0400 (EDT), Alan Stern wrote: > On Sat, 27 Aug 2005, Pete Zaitcev wrote: > > > Kernel > > > ====== > > > - 2.6.8, 2.6.11.10 and 2.6.12.4, all show same problem > > Actually, I suspected that this may be a poorly working Transaction > > Tranlating (TT) hub. Which then may work on certain versions of > > Windows. > It looks to me more like a timing problem with initialization of the > external high-speed hub. Try this patch: > > http://marc.theaimsgroup.com/?l=linux-usb-devel&m=112439094723976&w=2 Yes, Dominik, please do. The TT was a poor guess, because IIRC 2.6.8 did not have the support for TT, so it could not get it wrong. But testing this hub elsewhere _and_ replacing it with a borrowed hub would be a good idea, IMHO. -- Pete