From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261424AbVGCNDB (ORCPT ); Sun, 3 Jul 2005 09:03:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261427AbVGCNDB (ORCPT ); Sun, 3 Jul 2005 09:03:01 -0400 Received: from [62.253.222.6] ([62.253.222.6]:21713 "EHLO caveman.xisl.com") by vger.kernel.org with ESMTP id S261425AbVGCNC3 (ORCPT ); Sun, 3 Jul 2005 09:02:29 -0400 Subject: Problems with USB Scanner in 2.6.11.12 kernel From: John M Collins To: Linux Kernel Mailing List Content-Type: text/plain Organization: Xi Software Ltd Date: Sun, 03 Jul 2005 14:02:21 +0100 Message-Id: <1120395741.11280.101.camel@caveman.xisl.com> Mime-Version: 1.0 X-Mailer: Evolution 2.0.1-1mdk Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Please CC to me at jmc AT xisl.com as I'm not subscribed - thanks I recently (well about 3 weeks ago) upgraded the kernel on one of our machines to 2.6.11.12 at the time the "latest and greatest". However since then I've been having problems with a USB Scanner I'm using. It seems to die after a couple of pages have been scanned with the following message sequence in /var/log/messages: Jul 3 13:19:22 caveman kernel: usb 3-1: device descriptor read/64, error -19 Jul 3 13:19:22 caveman kernel: usb 3-1: USB disconnect, address 3 (note the messages either side of this happened without me doing anything and the entry disappeared from /proc/bus/usb/003/003 and appeared in /proc/bus/usb/003/004). Jul 3 13:19:22 caveman kernel: usb 3-1: new full speed USB device using uhci_hc d and address 4 Jul 3 13:21:35 caveman kernel: usb 3-1: reset full speed USB device using uhci_ hcd and address 4 Jul 3 13:22:39 caveman kernel: usb 3-1: reset full speed USB device using uhci_ hcd and address 4 Jul 3 13:23:43 caveman kernel: usb 3-1: reset full speed USB device using uhci_ hcd and address 4 Jul 3 13:24:53 caveman last message repeated 2 times Jul 3 13:25:23 caveman kernel: usb 3-1: reset full speed USB device using uhci_ hcd and address 4 Jul 3 13:25:41 caveman kernel: hub 3-0:1.0: port 1 disabled by hub (EMI?), re-e nabling... Jul 3 13:25:41 caveman kernel: usb 3-1: reset full speed USB device using uhci_ hcd and address 4 Jul 3 13:25:41 caveman kernel: usb 3-1: device descriptor read/64, error -19 Jul 3 13:25:41 caveman kernel: usb 3-1: device descriptor read/64, error -19 Jul 3 13:25:41 caveman kernel: usb 3-1: reset full speed USB device using uhci_ hcd and address 4 Jul 3 13:25:42 caveman kernel: usb 3-1: device descriptor read/64, error -19 Jul 3 13:25:42 caveman kernel: usb 3-1: device descriptor read/64, error -19 Jul 3 13:25:42 caveman kernel: usb 3-1: USB disconnect, address 4 After which it doesn't appear anywhere in /proc/bus/usb I've tried swapping usb ports - there are several on the machine. I've tried swapping scanners (they're both Epson ones, different models). It seems OK with previous versions of the kernel on other machines. I see we're now on 2.6.12.2 and there have been mods to bits of the USB but I don't see anything directly related but I might have missed something. I'd be grateful for any advice you could give - thanks. -- John Collins Xi Software Ltd jmc AT xisl.com