kernelmod_demo/demo_module.c

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

/* Meta Info */
MODULE_DESCRIPTION("Demo kernel module.");
MODULE_VERSION("0.0.1");
MODULE_AUTHOR("Imbus");
MODULE_LICENSE("GPL");

/**
 * @brief Called on load
 */
static int __init demo_mod_init(void) {
    printk(KERN_INFO "Demo module loaded successfully...");
    return 0;
}

/**
 * @brief Called on unload
 */
static void __exit demo_mod_exit(void) {
    printk(KERN_INFO "Demo module unloaded successfully...");
}

module_init(demo_mod_init);
module_exit(demo_mod_exit);