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=-0.9 required=3.0 tests=DKIM_SIGNED, MAILING_LIST_MULTI,SPF_PASS,T_DKIM_INVALID,URIBL_BLOCKED autolearn=ham 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 3891CECDE5F for ; Mon, 23 Jul 2018 18:37:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DB27220671 for ; Mon, 23 Jul 2018 18:37:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Z4rkj4kj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DB27220671 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388076AbeGWTjj (ORCPT ); Mon, 23 Jul 2018 15:39:39 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:59118 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388012AbeGWTjj (ORCPT ); Mon, 23 Jul 2018 15:39:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To: From:Date:Sender:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=cXjbJbCCdqudrGYots11vdQIWwURgKOxoWes9lvTPBU=; b=Z4rkj4kjYSel0LsyblscGSzom g6diQjO0OhUhPV2nWdGtwXI5nTLlWnZJ3O/yTmnPHCd2lWVADRr6eAFf6YePk7KyYrquMSFooo8Nm 0oy8D/O5mppH3vWYIPcZdjtHy8pewA7n6e9q6lGGSvG80njCzCTARx47zGOLDD05gTNjCJXz9Trdb SZw6rd39vdJm9cfhFEG9P9WOrgcAEolMOQuz9KRK9AfJX4P07vuXQZWo2/tnMtodcfSdOt/nCH0PZ GMw05/Tvk5xDeRGH7hy4KaG3EzgyX7fKVa0etv8YxQ5E3WVxGrFPNB8Rwm24WwZ07SRSLc47K9Y4L pWs+OVz2w==; Received: from 177.41.135.13.dynamic.adsl.gvt.net.br ([177.41.135.13] helo=coco.lan) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fhfhg-0002Pq-82; Mon, 23 Jul 2018 18:37:04 +0000 Date: Mon, 23 Jul 2018 15:36:57 -0300 From: Mauro Carvalho Chehab To: Pavel Machek Cc: pali.rohar@gmail.com, sre@kernel.org, kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, tony@atomide.com, khilman@kernel.org, aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com, patrikbachan@gmail.com, serge@hallyn.com, abcloriens@gmail.com, clayton@craftyguy.net, martijn@brixit.nl, sakari.ailus@linux.intel.com, Filip =?UTF-8?B?TWF0aWpldmnEhw==?= , mchehab@s-opensource.com, sakari.ailus@iki.fi, linux-media@vger.kernel.org, hans.verkuil@cisco.com Subject: Re: [PATCH, libv4l]: Make libv4l2 usable on devices with complex pipeline Message-ID: <20180723153649.73337c0f@coco.lan> In-Reply-To: <20180719205344.GA12098@amd> References: <20180708213258.GA18217@amd> <20180719205344.GA12098@amd> X-Mailer: Claws Mail 3.16.0 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Pavel, Em Thu, 19 Jul 2018 22:53:44 +0200 Pavel Machek escreveu: > On Sun 2018-07-08 23:32:58, Pavel Machek wrote: > > > > Add support for opening multiple devices in v4l2_open(), and for > > mapping controls between devices. > > > > This is necessary for complex devices, such as Nokia N900. > > > > Signed-off-by: Pavel Machek > > Ping? > > There's a lot of work to do on libv4l2... timely patch handling would > be nice. As we're be start working at the new library in order to support complex cameras, and I don't want to prevent you keeping doing your work, IMHO the best way to keep doing it would be to create two libv4l2 forks: - one to be used by you - meant to support N900 camera; - another one to be used by Google/Intel people that will be working at the Complex camera. This way, we can proceed with the development without causing instability to v4l-utils. Once we have the projects done at the separate repositories, we can work on merging them back upstream. So, please send me, in priv, a .ssh key for me to add you an account at linuxtv.org. I'll send you instructions about how to use the new account. Thanks, Mauro