From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from smtp.nokia.com ([192.100.105.134]:44991 "EHLO mgw-mx09.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752281Ab0BVXvL (ORCPT ); Mon, 22 Feb 2010 18:51:11 -0500 Message-ID: <4B831849.3090701@maxwell.research.nokia.com> Date: Tue, 23 Feb 2010 01:50:33 +0200 From: Sakari Ailus MIME-Version: 1.0 To: Andy Walls CC: hverkuil@xs4all.nl, Devin Heitmueller , Linux Media Mailing List , Laurent Pinchart Subject: Re: Chroma gain configuration References: <829197381002212007q342fc01bm1c528a2f15027a1e@mail.gmail.com> <1266838852.3095.20.camel@palomino.walls.org> In-Reply-To: <1266838852.3095.20.camel@palomino.walls.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Andy Walls wrote: > On Sun, 2010-02-21 at 23:07 -0500, Devin Heitmueller wrote: >> I am doing some work on the saa711x driver, and ran into a case where >> I need to disable the chroma AGC and manually set the chroma gain. > > Sakari, Hans, or anyone else, Hi Andy, > On a somewhat related note, what is the status of the media controller > and of file handles per v4l2_subdev. Will Sakari's V4L file-handle > changes be all we need for the infrastructure or is there more to be > done after that? There are three things: - V4L2 file handles (and events) - V4L2 subdev device nodes - Media controller The file handles and events appear to be fairly ready. > I'd like to implement specific "technician controls", something an > average user wouldn't use, for a few subdevs. For that you'd need at least V4L2 subdev device nodes, preferrably also Media controller e.g. for the user space to know the two devices indeed are connected to the same higher level device. File handles do not matter here; it's just a generic way to store file handle specific data, required by events, for example. Subdev device nodes and Media controller patches live in Laurent's tree at linuxtv.org at the moment. Regards, -- Sakari Ailus sakari.ailus@maxwell.research.nokia.com