linux delaywork的简单使用

简单使用：

(1)定义：

        struct delayed_work test_delaywork;

(2)初始化

    INIT_DELAYED_WORK(&test_delaywork , test_delaywork_func);

(3)实现回调函数

static void test_delaywork_func(struct work_struct *work)

{

    printk("delaywork running\n");

}

(4)调用delaywork

    schedule_delayed_work(&test_delaywork , msecs_to_jiffies(200));

(5)取消delaywork

    cancel_delayed_work_sync(&test_delaywork  );