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#include#include #include #include #include #include // 定义设备文件名#define DEVICE_NAME "wordcount"// 描述与设备文件触发的事件对应的回调函数指针static struct file_operations dev_fops ={ .owner = THIS_MODULE };// 描述设备文件的信息 static struct miscdevice misc ={ .minor = MISC_DYNAMIC_MINOR, .name = DEVICE_NAME, .fops = &dev_fops };// 初始化Linux驱动static int __init word_count_init(void){ int ret; // 建立设备文件 ret = misc_register(&misc); // 输出日志信息 printk("word_count_init_success,ret=%d\n",ret); return ret;}// 卸载Linux驱动static void __exit word_count_exit(void){ // 删除设备文件 misc_deregister(&misc); // 输出日志信息 printk("word_count_init_exit_success\n");} // 注册初始化Linux驱动的函数module_init( word_count_init);// 注册卸载Linux驱动的函数module_exit( word_count_exit);MODULE_AUTHOR("lining");MODULE_DESCRIPTION("statistics of word count.");MODULE_ALIAS("word count module.");MODULE_LICENSE("GPL");
[root@localhost word_count]# rmmod word_count
ERROR: Module word_count does not exist in /proc/modules [root@localhost word_count]# insmod word_count.ko [root@localhost word_count]# dmesg | grep word_count word_count: no version for "struct_module" found: kernel tainted. word_count_init_success word_count_init_exit_success word_count_init_success word_count_init_exit_success word_count_init_success word_count_init_exit_success word_count_init_success word_count_init_exit_success word_count_init_success,ret=0 [root@localhost word_count]# modinfo word_count.ko filename: word_count.ko license: GPL alias: word count module. description: statistics of word count. author: lining srcversion: B604BC7626027EB7564FDA5 depends: vermagic: 2.6.18-53.el5xen SMP mod_unload 686 REGPARM 4KSTACKS gcc-4.1 [root@localhost word_count]#转载地址：http://ynkib.baihongyu.com/