/*
**$ gcc -DMODULE -D__KERNEL__ -I /usr/src/linux-2.4.20/include -c hello.c
**$ insmod hello.o 如果成功加载到内核将在终端上显示:Hello world, Linux Driver!
**$ rmmod hello.o 卸载成功的话将终端显示: Goodbye, Linux Driver!
*/
#include
#include /* Tell the kernel I can do what */
static int __init hello_init(void)
{
printk(KERN_ALERT"Hello world, Linux Driver!
");
return 0;
}
/* Tell the kernel stop me doing */
static void __exit hello_exit(void)
{
printk(KERN_ALERT"Goodbye, Linux Driver!
");
}
module_init(hello_init);
module_exit(hello_exit);
MODULE_LICENSE("Dual BSD/GPL"); /* All modules need to define the LICENCE */