《Linux驱动》驱动注册

#include <linux/init.h>
#include <linux/module.h>

/*驱动注册的头文件，包含驱动的结构体和注册和卸载的函数*/
#include <linux/platform_device.h>

#define DRIVER_NAME "hello_ctl"
/*设备注册所需的名字，在内核/arch/arm/mach-exynos/mach-tiny4412.c需要用到 static struct platform_device tiny4412_device_h = { .name = "hello_ctl", .id = -1, .num_resources = 0, }; &tiny4412_device_h, */

static int hello_probe(struct platform_device *pdv){

    printk(KERN_EMERG "\tinitialized\n");

    return 0;
}

static int hello_remove(struct platform_device *pdv){
    return 0;
}

static void hello_shutdown(struct platform_device *pdv){
}

static int hello_suspend(struct platform_device *pdv){
    return 0;
}

static int hello_resume(struct platform_device *pdv){
    return 0;
}
//驱动注册结构体
struct platform_driver hello_driver = {
    .probe = hello_probe,
    .remove = hello_remove,
    .shutdown = hello_shutdown,
    .suspend = hello_suspend,
    .resume = hello_resume,
    .driver = {
        .name = DRIVER_NAME,//在设备注册中需要用到的名字，两者必须一致.
        .owner = THIS_MODULE,
    }
};


static int hello_init(void)
{
    int DriverState;

    printk(KERN_EMERG "HELLO WORLD enter!\n");
    DriverState = platform_driver_register(&hello_driver);

    printk(KERN_EMERG "\tDriverState is %d\n",DriverState);
    return 0;
}

static void hello_exit(void)
{
    printk(KERN_EMERG "HELLO WORLD exit!\n");

    platform_driver_unregister(&hello_driver);  
}

module_init(hello_init);
module_exit(hello_exit);
MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("HerGhost");