From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758656AbZIOTrH (ORCPT ); Tue, 15 Sep 2009 15:47:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758039AbZIOTrF (ORCPT ); Tue, 15 Sep 2009 15:47:05 -0400 Received: from smtp-out003.kontent.com ([81.88.40.217]:56179 "EHLO smtp-out003.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758610AbZIOTrE (ORCPT ); Tue, 15 Sep 2009 15:47:04 -0400 From: Oliver Neukum To: Andreas Mohr Subject: Re: usb autosuspend is history after S2R (also on 2.6.31; UVC?) Date: Tue, 15 Sep 2009 21:48:28 +0200 User-Agent: KMail/1.10.3 (Linux/2.6.31-rc9-0.1-default; KDE/4.1.3; x86_64; ; ) Cc: Alan Stern , "Greg Kroah-Hartman" , laurent.pinchart@skynet.be, Matthew Garrett , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org References: <20090915185145.GA31490@rhlx01.hs-esslingen.de> In-Reply-To: <20090915185145.GA31490@rhlx01.hs-esslingen.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200909152148.29662.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Dienstag, 15. September 2009 20:51:45 schrieb Andreas Mohr: > So, does the uvc driver need a bit of handholding here? > It likely shouldn't simply forget about its autosuspend status after > resume... Can you please provide what you get when you read the "level" file of the device's power directory? Secondly, please verify, that it works before the STR cycle and post a syslog of a suspend/resume cycle with CONFIG_USB_DEBUG and only this device attached if possible. Thirdly, please verify that only uvc is affected. > Or would Matthew's uvc autosuspend patch > http://osdir.com/ml/fedora-extras-commits/2009-07/msg06079.html > help here? Please test it. It shouldn't work, but if it works there's a fundamental flaw. Regards Oliver