example_lkm.c

/* An Example of Loadable Kernel Module */

#include<linux/kernel.h>
#include<linux/init.h>
#include<linux/module.h>

MODULE_DESCRIPTION("cvam example kernel module ");
MODULE_AUTHOR("cvam");
MODULE_LICENSE("GPL");

static int cvam_module_init(void)
{
	printk(KERN_ALERT " This function initialised the module ");
	return 0;
}

static void cvam_module_exit(void)
{
	printk(KERN_ALERT " Time to leave the planet kernel " );
}

module_init(cvam_module_init);
module_exit(cvam_module_exit);