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=-5.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 CAFA2C4332B for ; Mon, 23 Mar 2020 11:58:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 955CE20781 for ; Mon, 23 Mar 2020 11:58:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="iQTJR2M1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728190AbgCWL6F (ORCPT ); Mon, 23 Mar 2020 07:58:05 -0400 Received: from perceval.ideasonboard.com ([213.167.242.64]:47052 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728174AbgCWL6F (ORCPT ); Mon, 23 Mar 2020 07:58:05 -0400 Received: from pendragon.ideasonboard.com (81-175-216-236.bb.dnainternet.fi [81.175.216.236]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 2BA51308; Mon, 23 Mar 2020 12:58:03 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1584964683; bh=JNDk9wn76BRC2ltv6vH7dVDYspglphRvhbxJvyQdBWs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=iQTJR2M1vuOj5cCdl6xlBR99w3t1M39rNCeX8SbmKsNH1Ho4cAwP0dgFekw38r0Is uxp3rwi9wE3S1jxZp9GGXXe0igY9ZsrlPCCZf7cbcSzhICv4mg72FsfOKr8yf/aB6B JohRht9f81scwxgE7qQb7p0jcIEzhfM+A0iy3FdQ= Date: Mon, 23 Mar 2020 13:57:53 +0200 From: Laurent Pinchart To: Pavel Machek Cc: sean@mess.org, hverkuil-cisco@xs4all.nl, mchehab+samsung@kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com, linux-media@vger.kernel.org Subject: Re: [PATCH] Minimal libv4l2 support for complex cameras Message-ID: <20200323115753.GC12103@pendragon.ideasonboard.com> References: <20200323114727.GA31063@amd> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20200323114727.GA31063@amd> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Hi Pavel, Thank you for the patch. 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. How about contributing an OMAP3 ISP pipeline handler to libcamera instead ? :-) > It enables passing camera pipeline description to libv4l2, so that > controls are mapped to appopriate devices, and libv4l2 can be used > with complex camera. > > It is useful for testing kernel parts of N900 subsystem, and it will > serve as a basis for autofocus work and autogain improvements. > > Signed-off-by: Pavel Machek [snip] -- Regards, Laurent Pinchart