From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from lb1-smtp-cloud3.xs4all.net ([194.109.24.22]:50867 "EHLO lb1-smtp-cloud3.xs4all.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750770AbbBUKW1 (ORCPT ); Sat, 21 Feb 2015 05:22:27 -0500 Message-ID: <54E85C48.6070907@xs4all.nl> Date: Sat, 21 Feb 2015 11:22:00 +0100 From: Hans Verkuil MIME-Version: 1.0 To: Florian Echtler , Mauro Carvalho Chehab CC: laurent.pinchart@ideasonboard.com, linux-input@vger.kernel.org, linux-media@vger.kernel.org Subject: Re: [PATCH v3][RFC] add raw video stream support for Samsung SUR40 References: <1423063842-6902-1-git-send-email-floe@butterbrot.org> <54DB4295.1080307@butterbrot.org> <54E1D71C.2000003@xs4all.nl> <54E7AB1E.3000401@butterbrot.org> In-Reply-To: <54E7AB1E.3000401@butterbrot.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On 02/20/2015 10:46 PM, Florian Echtler wrote: > On 16.02.2015 12:40, Hans Verkuil wrote: >> On 02/11/2015 12:52 PM, Florian Echtler wrote: >>> does anyone have any suggestions why USERPTR still fails with dma-sg? >>> >>> Could I just disable the corresponding capability for the moment so that >>> the patch could perhaps be merged, and investigate this separately? >> >> I prefer to dig into this a little bit more, as I don't really understand >> it. Set the videobuf2-core debug level to 1 and see what the warnings are. >> >> Since 'buf.qbuf' fails in v4l2-compliance, it's something in the VIDIOC_QBUF >> sequence that returns an error, so you need to pinpoint that. > OK, I don't currently have access to the hardware, but I will try this > as soon as possible. > >> If push comes to shove I can also merge the patch without USERPTR support, >> but I really prefer not to do that. > How long until the next merge window closes? Probably about 6 weeks from now, but is good to err on the safe side and make a decision in 4 weeks. Regards, Hans