用VI写了一个hello.world的C程序.用gcc 编译OK后生成 hello.o
用root身份.终端下输入insmod hello.o
按照书上说的应该输出程序的结果. 但是系统提示 bash: insmod : command not found.
真是纳闷. 我是按照书上做的.与书上的结果不一样.为什么?

#include
#include
#include
#include
#include
#include
#include

MODULE_LICENSE("GPL");

struct timer_list my_timer;
struct tty_driver *my_driver;
struct cdev *char_dev;
unsigned long led_seq = 1;

#define BLINK_DELAY HZ/5
#define LED_FIRST 0x02
#define LED_SECOND 0x04
#define LED_THIRD 0x01
#define LED_ALL 0x07

#define RESTORE_LEDS 0xFF
#define LED_LIGHT 0x01
#define LED_DARK 0x02

static void my_timer_func(unsigned long ptr)
{
        if(ptr == 1){
                (my_driver->ioctl)(vc_cons[fg_console].d->vc_tty,NULL,KDSETLED,RESTORE_LEDS);
                (my_driver->ioctl)(vc_cons[fg_console].d->vc_tty,NULL,KDSETLED,LED_FIRST);
                
          led_seq = 2;
          my_timer.data = led_seq;
          my_timer.expires = jiffies + BLINK_DELAY;
          add_timer(&my_timer); 
        }
        if(ptr == 2){
                (my_driver->ioctl)(vc_cons[fg_console].d->vc_tty,NULL,KDSETLED,RESTORE_LEDS);
                (my_driver->ioctl)(vc_cons[fg_console].d->vc_tty,NULL,KDSETLED,LED_SECOND);
                
          led_seq = 3;
          my_timer.data = led_seq;
          my_timer.expires = jiffies + BLINK_DELAY;
          add_timer(&my_timer); 
        }
        if(ptr == 3)
        {
                (my_driver->ioctl)(vc_cons[fg_console].d->vc_tty,NULL,KDSETLED,RESTORE_LEDS);
                (my_driver->ioctl)(vc_cons[fg_console].d->vc_tty,NULL,KDSETLED,LED_SECOND);
                
          led_seq = 1;
          my_timer.data = led_seq;
          my_timer.expires = jiffies + BLINK_DELAY;
          add_timer(&my_timer); 
        }
}

static int device_open(struct inode *inode,struct file *file)
{
        int i;
        for(i=0; ivc_tty->driver;
        
        init_timer(&my_timer);
        my_timer.fucction = my_timer_func;
        my_timer.data = led_seq;
        my_timer.expires = jiffies + BLINK_DELAY;
        add_timer(&my_timer);
        
        return 0;
}

static int device_release(struct inode *inode,struct file *file)
{
        del_timer(&my_timer);
        return 0;
}

static ssize_t device_read(struct file *file,char * buf,size_t count,loff_t *ppos)
{
        return 0;
}

static ssize_t device_write(struct file *file,char * buf,size_t count,loff_t *ppos)
{
        return 0;
}

static int device_ioctl(struct inode *inode,struct file *file,unsigned int cmd,unsigned long arg)
{
        switch(cmd){
                case LED_LIGHT:
                        (my_driver->ioctl)(vc_cons[fg_console].d->vc_tty,NULL,KDSETLED,LED_ALL);
                        break;
                case LED_DARK:
                        (my_driver->ioctl)(vc_cons[fg_console].d->vc_tty,NULL,KDSETLED,RESTORE_LEDS);
                        break;
                default:break;                        
        }
        return 0;
}

struct file_operations device_ops = {
                                                .owner = THIS_MODULE,
                                                .llseek = NULL,
                                                .read = device_read,
                                                .write = device_write,
                                                .readdir = NULL,
                                                .poll = NULL,
                                                .ioctl = device_ioctl,
                                                .mmap = NULL,
                                                .open = device_open,
                                                .flush = NULL,
                                                .release = device_release,
                                                .fsync = NULL,
                                                .fasync = NULL,
                                                .lock = NULL,
                                                .readv = NULL,
                                                .writev = NULL,
}

static int __init kbleds_init(void)
{
        int i,ret;
        int chardev_major;
        dev_t dev = 0;
        ret = alloc_chrdev_region(&dev,0,1,"char_dev");
        chardev_major = MAJOR(dev);
        if(ret driver;
        return 0;
}

static void __exit kbleds_cleanup(void)
{
        cdev_del(char_dev);
        unregister_chardev_region(dev,1);
        (my_driver->ioctl)(vc_cons[fg_console].d->vc_tty,NULL,KDSETLED,RESTORE_LEDS);
}

module_init(kbleds_init);
module_exit(kbleds_cleanup);

bash: insmod : command not found:
可能是权限不够,su到root.

"bash: insmod : command not found"
这时候的问题肯定是和你的INSMOD命令有关,可以换一台真正安装了
LINUX的机器试试.

你的系统当前不支持insmod命令,处去权限问题
应该是module工具的问题
你升级下module-init工具就可以了

路径的问题吧，
locate insmod 看看这个命令在哪里，
比如
/sbin/insmod xxx.o