From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from perceval.ideasonboard.com ([95.142.166.194]:52621 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753142AbaDCXOm (ORCPT ); Thu, 3 Apr 2014 19:14:42 -0400 From: Laurent Pinchart To: "Scheuermann, Mail" Cc: "linux-media@vger.kernel.org" Subject: Re: AW: v4l2_buffer with PBO mapped memory Date: Fri, 04 Apr 2014 01:16:45 +0200 Message-ID: <82154683.DEhQIaoLxb@avalon> In-Reply-To: <67C778DDEF97AE4BA9DC4BA8ECFD811E1DB2C949@KUUMEX11.barco.com> References: <533C2872.5090603@barco.com> <11263729.kS3FzW2BUL@avalon> <67C778DDEF97AE4BA9DC4BA8ECFD811E1DB2C949@KUUMEX11.barco.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-media-owner@vger.kernel.org List-ID: Hi Thomas, On Thursday 03 April 2014 16:52:19 Scheuermann, Mail wrote: > Hi Laurent, > > the driver my device uses is the uvcvideo. I have the kernel 3.11.0-18 from > Ubuntu 13.10 running. It is built in in a Thinkpad X240 notebook. OK. A bit of debugging will then be needed. Could you set the videobuf2-core debug parameter to 3, retry your test case and send us the kernel log ? -- Regards, Laurent Pinchart