From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750987AbXCZU2l (ORCPT ); Mon, 26 Mar 2007 16:28:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751831AbXCZU2l (ORCPT ); Mon, 26 Mar 2007 16:28:41 -0400 Received: from iolanthe.rowland.org ([192.131.102.54]:34832 "HELO iolanthe.rowland.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1750987AbXCZU2k (ORCPT ); Mon, 26 Mar 2007 16:28:40 -0400 Date: Mon, 26 Mar 2007 16:28:34 -0400 (EDT) From: Alan Stern X-X-Sender: stern@iolanthe.rowland.org To: Tino Keitel cc: Oliver Neukum , , Subject: Re: [linux-usb-devel] possible USB regression with 2.6.21-rc4: iPod doesn't work In-Reply-To: <20070326185900.GA27068@dose.home.local> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 26 Mar 2007, Tino Keitel wrote: > Attached is a dmesg output with CONFIG_USB_DEBUG and CONFIG_USB_SUSPEND > enabled. > > There are no messages from the iPod because, well, nothing happens when > I plug it in. I tried it 3 times. I don't understand. The dmesg log you attached shows the iPod was detected and recognized as scsi5 (sdc). Then some time later (can't tell how much later because you don't have CONFIG_PRINTK_TIME set) it was unplugged and plugged back in. The second time it was detected and recognized as scsi6 (also sdc). And then the log ends. Why do you say there are no messages from the iPod? Grepping for "iPod" in the log shows that the string appears 4 times. If nothing happened when you plugged it in, how could the computer have known the device was an iPod? > The strange thing is: when I trigger > a suspend or shutdown, You mean you suspend or shutdown the computer? Or the iPod? > then the "Do not disconnect" message shows up on > the iPod, which means that the computer regognized it as a storage > device. What's so strange about that? Isn't that exactly what's supposed to happen? Alan Stern