I'm guessing somebody else can answer this better than I can. Who wants to take a stab? Phil -------- Original Message -------- From: - Thu Nov 6 14:43:07 2003 X-UIDL: 63bd79ec803c391a X-Mozilla-Status: 0001 X-Mozilla-Status2: 00000000 Return-Path: <kkyzivat at physiometrix.com> Received: from mercury.physiometrix.com (mercury.physiometrix.com [66.112.162.232]) by Ren.netroedge.com (8.12.10/8.12.8) with ESMTP id hA6MSoJE002924 for <phil at netroedge.com>; Thu, 6 Nov 2003 14:28:50 -0800 Received: from MA01WK-KK.physiometrix.com [192.168.168.83] by mercury.physiometrix.com with XWall v3.28 ; Thu, 6 Nov 2003 17:42:14 -0500 Message-ID: <3FAACE45.3010200 at physiometrix.com> Date: Thu, 06 Nov 2003 17:42:13 -0500 From: Keith Kyzivat <kkyzivat at physiometrix.com> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5) Gecko/20030924 Thunderbird/0.3 X-Accept-Language: en-us, en MIME-Version: 1.0 To: phil at netroedge.com Subject: userland i2c ioctl commands.. Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Quarentine-Loop: Processed X-Spambayes-Classification: ham; 0.01 Hello Phil, I'm trying to track down why i2c ioctl command defines and other userland useful bits were left out of i2c-dev.h in the kernel includes. After upgrading to the latest 2.4.22 kernel from an older 2.4.21 kernel, our i2c SMBus code failed to compile -- I tracked it down to a missing i2c IOCTL command define that was originally in i2c.h - (still is actually) that was included by i2c-dev.h. This no longer happens... I noticed that the newer version of i2c.h doesn't have kernel conditional code, and it breaks if userland code includes it (due to the externed syscall function prototypes for one)... I poked around at your lmsensors package, and I notice that it provides its own i2c-dev.h file -- including all the ioctl commands and other parameters that are in i2c.h, along with the normal contents of i2c-dev.h from the kernel includes. My question to you is, will the __KERNEL__ checking return, letting userspace programs include i2c.h again? I'm trying to keep my program as OS independant as possible, and this just adds to the os-specific stuff (having to add a modified i2c-dev.h file)... Thank you! Keith Kyzivat Software Architect Physiometrix, Inc.
