errors compiling modules

[moma]

Hello,

Try this

File:mod1.c

/* 
#define _LINUX_TIME_H 1 
thats to solve the "Redefinition von »struct timespec«" problem
*/

#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>

#include <linux/time.h>

#include <linux/init.h>
#include <linux/stat.h> 


MODULE_LICENSE("GPL");
MODULE_AUTHOR("Kalle & Olga Kuusamolainen"); 

static int __init init_this_module(void)
{
     	printk(KERN_INFO "mod1: init_this_module() called.\n");
	return 0;
}

static void __exit  shutdown_this_module(void)
{
     	printk(KERN_INFO "mod1: shutdown_this_module() called.\n");
}


module_init(init_this_module);
module_exit(shutdown_this_module);

File:Makefile

obj-m  := mod1.o

KDIR   := /lib/modules/$(shell uname -r)/build
PWD    := $(shell pwd)

default:
	$(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules

Note:
In the Makefile, there must be a TAB (tabulator) character before the
$(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules
line.


Compile it (using the Makefile):
$ make

Load the module mod1.ko:
$ sudo insmod mod1.ko

Now check the system messages
$ dmesg | tail -10

[13408.233936] mod1: init_this_module() called.

Remove the module:
$ sudo rmmod mod1

Check again the system messages
$ dmesg | tail -10
or
$ dmesg | grep "mod1"

[13408.233936] mod1: init_this_module() called.
[13408.233937] mod1: shutdown_this_module() called.

Very important: Study these kernel developers' guides
http://www.futuredesktop.org/kernel.html Section: Driver and module programming.

Good luck
-----------------------

EDIT: Prerequisites to compile a kernel-module are:
$ sudo aptitude install build-essential gdb linux-headers-$(uname -r)

You may also need:
$ sudo aptitude install automake autoconf libtool
-----------------------

ps. This is howto install VMware Player and VirtualBox in/on Ubuntu 7.10 beta (gutsy gibbon).
http://www.futuredesktop.org/vmware/...yer-gutsy.html (just in case you need some love)