这是Linux下的一个驱动加载测试程序，虽说是测试，但是，代码可并不像简单的打印一个helloworld一样简单。该程序先用gcc把它编译生成目标文件，然后再用insmod codename.o命令进行模块加载。加载以后，本驱动程序将永久保存，直到用卸载命令把它卸除才会消失。-This is a Linux driver to load under the test procedures, although it is tested, but the code is not as simple as simple as printing a helloworld. The program to compile it using gcc to generate the target file and then insmod codename.o module load order. After loading, the driver will be permanently preserved, until the command used to uninstall it will disappear removable.