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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 592B9C4332B for ; Mon, 23 Mar 2020 12:59:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2D7962073E for ; Mon, 23 Mar 2020 12:59:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584968398; bh=Mrze4Lc/BY13pd9SIheWlcJz4CdWkYthKhlrquPublQ=; h=Date:From:To:Cc:Subject:In-Reply-To:References:List-ID:From; b=ZwDl5dsBWKnMd+0t3mpWO6oLpV08jwn6M4plkUjZAFmkFEN9+C/nDNTkm+0LFoWr5 fGGJdLwaxseSH6Aznq/0PcymExUHJEO5WWxTbz4o/9ejg949RiaCgekcporZ0SfIqd wm1La5sLqgJPuXwhQS+RpLXiuGnIH/n5sZwKJu6w= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728253AbgCWM75 (ORCPT ); Mon, 23 Mar 2020 08:59:57 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:60646 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727326AbgCWM75 (ORCPT ); Mon, 23 Mar 2020 08:59:57 -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; bh=usfIE2fsx0DiKqOCX+1BK7SdAqjrfpyvoqPsNch3qEQ=; b=I4HNjjiv8I1GOq+AVZLURulh9O rS6Qx/AVd6PyFDheDzXhOpZi1PJJHtBFMQ35x0UMPQW2dtM+uZ7xv+D1gZ5/etmPelhhukIrz4jmx 6kisnfyQHswxF5zJ3GIYTMhZpKvYW3JYm2qZnr22a4bGPDOS7SjPolVLVUuzZjqm2REsubolUeLNI jNN1M+rGwnM1nR7J0ESBHohSdQ+3pm2MLMJXJIU+Lg0XJH0huDZx9xR/a2lGZjOLORUH4mnFZE4oQ YNN+vUM08R7rG1IvBkiUY7VfM4W7vn4auSjK6bxpd04sDZJ66hrVG3acmxCg0POwCqdf+O7tp5r20 /mPJYxMQ==; Received: from ip5f5ad4e9.dynamic.kabel-deutschland.de ([95.90.212.233] helo=coco.lan) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jGMgB-0002gW-UR; Mon, 23 Mar 2020 12:59:44 +0000 Date: Mon, 23 Mar 2020 13:59:33 +0100 From: Mauro Carvalho Chehab To: Laurent Pinchart Cc: Pavel Machek , sean@mess.org, hverkuil-cisco@xs4all.nl, mchehab+samsung@kernel.org, sakari.ailus@linux.intel.com, linux-media@vger.kernel.org Subject: Re: [PATCH] Minimal libv4l2 support for complex cameras Message-ID: <20200323135933.6ddbe4c3@coco.lan> In-Reply-To: <20200323122442.GD12103@pendragon.ideasonboard.com> References: <20200323114727.GA31063@amd> <20200323115753.GC12103@pendragon.ideasonboard.com> <20200323122216.GA18697@duo.ucw.cz> <20200323122442.GD12103@pendragon.ideasonboard.com> X-Mailer: Claws Mail 3.17.5 (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-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Em Mon, 23 Mar 2020 14:24:42 +0200 Laurent Pinchart escreveu: > Hi Pavel, > > On Mon, Mar 23, 2020 at 01:22:17PM +0100, Pavel Machek wrote: > > > On Mon, Mar 23, 2020 at 12:47:27PM +0100, Pavel Machek wrote: > > >> Hi! > > >> > > >> We now have easy-to-install support for complex camera in form of > > >> Maemo Leste on N900.... Unfortunately we don't have anything in > > >> userspace that can be used to work with the camera. > > >> > > >> This attempts to be minimal solution to get libv4l2 to work. > > > > > > libv4l2 is mostly deprecated. Well, not really... I guess lots of userspace apps rely on it (qv4l2, xawtv, tvtime, camorama, zbar, ...). In order to be able to deprecate it, we need to add some code there to let them bind via libcamera and test them with different hardware, including the non-UVC ones. > > > How about contributing an OMAP3 ISP > > > pipeline handler to libcamera instead ? :-) > > > > Why should it be instead? > > > > I need something for kernel testing, and there is ton of apps using > > it. Let me do this. libcamera might be future, but... > > Sure, if it's useful for you, I won't prevent you from developing any > code you want :-) But there's very little chance of getting it merged, > and it would be useful to more people to have a support for that > platform in libcamera. It's really your decision, and I'm not blaming > you. I created some time ago a fork of v4l-utils in order to be able to merge the N900 work from Pavel. We can add the N900 work there - or on a separate branch at the main v4l-utils tree. Thanks, Mauro