Hi Ilan,
I don't know about the Oh Really! version, but this one taken from 'Beginning
Linux Programming' (forward by Alan Cox!) ISBN 1-861002-97-1 worked OK for
me.
2.4.31, GCC 3.4.4
Build like:
gcc -D__KERNEL__ -I/usr/src/linux/include -DMODULE -Wall -O2 -c hello.c -o
hello.o
Edit hello.c to suit:
#include <linux/module.h>
#if defined(CONFIG_SMP)
#define __SMP__
#endif
#if defined(CONFIG_MODVERSIONS)
#define MODVERSIONS
#include <linux/modversions.h>
#endif
#include <linux/kernel.h>
MODULE_AUTHOR ("Nick Warne <[email protected]>");
MODULE_DESCRIPTION ("Hello Kernel! module");
MODULE_LICENSE("GPL");
int init_module(void)
{
printk(KERN_DEBUG "Hello, kernel!\n");
return 0;
}
void cleanup_module(void)
{
printk(KERN_DEBUG "Good-bye, kernel!\n");
}
bash-2.05b# insmod hello.o
bash-2.05b# dmesg | tail -n1
Hello, kernel!
bash-2.05b# lsmod
Module Size Used by Tainted: P
hello 320 0 (unused)
bash-2.05b# rmmod hello
bash-2.05b# dmesg | tail -n1
Good-bye, kernel!
Hope that helps.
Nick
--
"When you're chewing on life's gristle,
Don't grumble, Give a whistle..."
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