From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 50D8CCA9EB9 for ; Wed, 23 Oct 2019 13:18:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 31B1121BE5 for ; Wed, 23 Oct 2019 13:18:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391306AbfJWNSt (ORCPT ); Wed, 23 Oct 2019 09:18:49 -0400 Received: from mx2.suse.de ([195.135.220.15]:37880 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726283AbfJWNSs (ORCPT ); Wed, 23 Oct 2019 09:18:48 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 5564EB59F; Wed, 23 Oct 2019 13:18:47 +0000 (UTC) Date: Wed, 23 Oct 2019 15:18:59 +0200 From: Jean Delvare To: linux-media@vger.kernel.org Cc: Laurent Pinchart , Mauro Carvalho Chehab , linux-usb@vger.kernel.org Subject: Logitech C270 webcam floods the log Message-ID: <20191023151859.30a8ce88@endymion> Organization: SUSE Linux X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-suse-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Hi all, When my Logitech C270 webcam is plugged in, my kernel log gets filled with this message: usb 3-4.1: reset high-speed USB device number 4 using xhci_hcd every 5 seconds. I have the same problem on 3 different Intel-based computers (different generations), using 2 different webcams, same brand "same model". Is Logitech doing crappy hardware these days, or are we doing something wrong? Is there any way to know the reason that triggers the reset? I would be more than happy to provide any relevant debugging information if anyone is able to make it stop. As it stands, I must plug my webcam before using it and unplug it as soon as I'm done, which isn't exactly convenient. Thanks, -- Jean Delvare SUSE L3 Support