Re: [Lcd4linux-devel] I2C again

[paul k. <pau...@xs...>]

This is strange. Look what my first part of the i2c.h looks like.

/* 
------------------------------------------------------------------------- */
/*                                                                           
*/
/* i2c.h - definitions for the i2c-bus 
interface                             */
/*                                                                           
*/
/* 
------------------------------------------------------------------------- */
/*   Copyright (C) 1995-2000 Simon G. Vogl

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 
USA.                */
/* 
------------------------------------------------------------------------- */

/* With some changes from Kyösti Mälkki <km...@cc...> and
   Frodo Looijaard <fr...@dd...> */

/* $Id: i2c.h,v 1.68 2003/01/21 08:08:16 kmalkki Exp $ */

#ifndef _LINUX_I2C_H
#define _LINUX_I2C_H

#ifdef __KERNEL__
#       include <linux/module.h>
#       include <linux/types.h>
#else
#       define __KERNEL__
#       include <linux/types.h>
#       undef __KERNEL__
#endif
#include <linux/i2c-id.h>
#ifdef __KERNEL__
#include <linux/device.h>       /* for struct device */
#include <asm/semaphore.h>

Same file revision, only different contents. I am now first going to 
check, if gentoo apply patches to these headers files. This is really 
strange.

Paul

Michael Reinelt wrote:

>Hi Paul,
>
>
>  
>
>>I still think that somehow you're building for kernel space. The reason
>>for this is the following items in your output:
>>
>>    
>>
>>>------------------------------------------------------------------------
>>>
>>>In file included from /usr/include/linux/sched.h:12,
>>>                from /usr/include/linux/module.h:10,
>>>                from /usr/include/linux/i2c.h:31,
>>>                from test-i2c.c:6:
>>>/usr/include/linux/jiffies.h:385:41: division by zero in #if
>>> 
>>>
>>>      
>>>
>>This module.h is only included (on my system) when __KERNEL__ is defined
>>when compiling i2c.h
>>    
>>
>
>No, not here:
>
>merlin:~ $ more /usr/include/linux/i2c.h
>/*--------------------------------------------------------------------*/
>/*                                                                    */
>/* i2c.h - definitions for the i2c-bus interface                      */
>/*                                                                    */
>/*--------------------------------------------------------------------*/
>/*   Copyright (C) 1995-2000 Simon G. Vogl
>
>    This program is free software; you can redistribute it and/or modify
>    it under the terms of the GNU General Public License as published by
>    the Free Software Foundation; either version 2 of the License, or
>    (at your option) any later version.
>
>    This program is distributed in the hope that it will be useful,
>    but WITHOUT ANY WARRANTY; without even the implied warranty of
>    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
>    GNU General Public License for more details.
>
>    You should have received a copy of the GNU General Public License
>    along with this program; if not, write to the Free Software
>    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
>     */
>/*--------------------------------------------------------------------*/
>
>/* With some changes from Kyösti Mälkki <km...@cc...> and
>   Frodo Looijaard <fr...@dd...> */
>
>/* $Id: i2c.h,v 1.68 2003/01/21 08:08:16 kmalkki Exp $ */
>
>#ifndef _LINUX_I2C_H
>#define _LINUX_I2C_H
>
>#include <linux/module.h>
>#include <linux/types.h>
>#include <linux/i2c-id.h>
>#include <linux/device.h>       /* for struct device */
>#include <asm/semaphore.h>
>
>There's no #ifdef __KERNEL__ around here...
>
>  
>
>>Which version of the kernel headers are you using? That warning message
>>in list.h is on line 713 on my system.
>>    
>>
>Line 705 or so here. Ther header files are from a vanilla 2.6.11 kernel
>
>  
>
>>On more thing to check is
>>gcc -v -E -dM test-i2c.c > defines-test-i2c.lst
>>gcc -v -E -dM test-i2c.c 2> defines-test-i2c2.lst
>>    
>>
>
>Too big for the mailing list, I'll send them with a PM to Paul only.
>
>I think the i2c.h file from the kernel ist simply not intended for
>userspace programs... if this is true, we have to create our own i2c.h...
>
>
>bye, Michael
>
>  
>