Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266833AbUIVUDK (ORCPT ); Wed, 22 Sep 2004 16:03:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266838AbUIVUDK (ORCPT ); Wed, 22 Sep 2004 16:03:10 -0400 Received: from smtp-103-wednesday.noc.nerim.net ([62.4.17.103]:33042 "EHLO mallaury.noc.nerim.net") by vger.kernel.org with ESMTP id S266833AbUIVUDG (ORCPT ); Wed, 22 Sep 2004 16:03:06 -0400 Date: Wed, 22 Sep 2004 20:55:09 +0200 From: Jean Delvare To: Adrian Cox Cc: Jon Smirl , Linux Kernel Mailing List , sensors@Stimpy.netroedge.com, Michael Hunold , Greg KH Subject: Re: [PATCH][2.6] Add command function to struct i2c_adapter Message-Id: <20040922205509.09ee1e1d.khali@linux-fr.org> In-Reply-To: <1095871863.18365.129.camel@localhost> References: <414F111C.9030809@linuxtv.org> <20040921154111.GA13028@kroah.com> <41506099.8000307@web.de> <41506D78.6030106@web.de> <1095843365.18365.48.camel@localhost> <1095854048.18365.75.camel@localhost> <20040922122848.M14129@linux-fr.org> <9e47339104092208403d9de6f4@mail.gmail.com> <1095868579.18365.105.camel@localhost> <9e4733910409220907727056b4@mail.gmail.com> <1095871863.18365.129.camel@localhost> Reply-To: LM Sensors , Linux Kernel Mailing List X-Mailer: Sylpheed version 0.9.12 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 897 Lines: 21 > > For my purpose of decoding the EDID read only access is fine. > > > > But I do know there are programs that use the user space I2C drivers > > to control extended monitor functions. Some monitors let you set > > brightnesss, contrast, on/off via the I2C link. > > In which case you will need the current mechanism, with the class > mechanism to stop sensor drivers probing the bus. There is no absolute necessity to do that as far as I can see. Usually, there is nothing on the DDC bus but the DDC EEPROM itself, so the probes won't happen except for the EEPROM itself, for which it is safe. -- Jean "Khali" Delvare http://khali.linux-fr.org/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/