From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751767AbWDCQNN (ORCPT ); Mon, 3 Apr 2006 12:13:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751765AbWDCQNM (ORCPT ); Mon, 3 Apr 2006 12:13:12 -0400 Received: from rtr.ca ([64.26.128.89]:25269 "EHLO mail.rtr.ca") by vger.kernel.org with ESMTP id S1751756AbWDCQNK (ORCPT ); Mon, 3 Apr 2006 12:13:10 -0400 Message-ID: <44314974.90907@rtr.ca> Date: Mon, 03 Apr 2006 12:12:36 -0400 From: Mark Lord User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8) Gecko/20060402 SeaMonkey/1.1a MIME-Version: 1.0 To: Joshua Kwan Cc: Alan Stern , linux-kernel@vger.kernel.org, linux-usb-devel@lists.sourceforge.net Subject: Re: [linux-usb-devel] Problems with USB setup with Linux 2.6.16 References: <44309821.1090600@triplehelix.org> In-Reply-To: <44309821.1090600@triplehelix.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Joshua Kwan wrote: > On 04/02/2006 07:09 PM, Alan Stern wrote: >> If you were to continue looking farther down in the log, you would find >> that ehci-hcd sees all those devices. Those that can run at high speed >> continue using the EHCI controller. For those that can't, the switch is >> reset and they get reconnected to their UHCI controller. > > That makes sense - that is indeed what happens when it DOES work (i.e. > with 2.6.15), but the fact is that they don't come back in 2.6.16. I > will try building ehci-hcd in and see what happens. Around 2.6.13, I noticed that EHCI stopped working after a suspend/resume (to/from RAM) cycle. So I updated my suspend script to unload/reload EHCI each time, which fixed the problem for me. My script still does that. Dunno if it's fixed in mainline or not. Does unloading/reloading EHCI help you? rmmod ehci_hcd ; modprobe ehci_hcd Cheers