Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752785Ab0DFJf3 (ORCPT ); Tue, 6 Apr 2010 05:35:29 -0400 Received: from lucidpixels.com ([75.144.35.66]:34576 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751682Ab0DFJfW (ORCPT ); Tue, 6 Apr 2010 05:35:22 -0400 Date: Tue, 6 Apr 2010 05:35:20 -0400 (EDT) From: Justin Piszcz To: Alan Stern cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: Re: 2.6.33.2: USB Quickcam Pro 9000 (usb resets)? In-Reply-To: Message-ID: References: User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1623 Lines: 43 On Mon, 5 Apr 2010, Alan Stern wrote: > On Mon, 5 Apr 2010, Justin Piszcz wrote: > >> Hi, >> >> When no webcam is used, I do not see disconnect/reconnects. >> When I use a webcam, I see the following, is this normal? >> Note: I run motion on this host. > > No, it is not normal. It indicates that the webcam is somehow > interfering with the signals from the keyboard hub. So the USB hub is shared amongst the ports in the back of the board that I am using: Port 1-> keyboard/mouse Port 2-> USB hub -> webcam Port 3-> UPS (but not using nut at the moment, just hooked up) $ lsusb Bus 001 Device 023: ID 0461:4d15 Primax Electronics, Ltd Dell Optical Mouse Bus 001 Device 022: ID 413c:2002 Dell Computer Corp. SK-8125 Keyboard Bus 001 Device 005: ID 046d:0990 Logitech, Inc. QuickCam Pro 9000 Bus 001 Device 004: ID 413c:1002 Dell Computer Corp. Keyboard Hub Bus 001 Device 003: ID 2001:f103 D-Link Corp. [hex] DUB-H7 7-port USB 2.0 hub Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 003: ID 051d:0002 American Power Conversion Uninterruptible Power Supply Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Any recommendations/workarounds how to fix or just ignore it? Justin. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/