#include #include #include int my_open (struct inode *inode, struct file *filp) { printk("my_open()\n"); return 0; } int my_close(struct inode *inode, struct file *filp) { printk("my_close()\n"); return 0; } static struct file_operations fops = { .open = my_open, .release = my_close, }; int my_init(void) { register_chrdev(200, "mydev", &fops ); return 0; } void my_exit(void) { unregister_chrdev( 200, "mydev" ); } MODULE_LICENSE("GPL"); module_init( my_init ); module_exit( my_exit );