/*
*platform_driver s3c2410wdt_driver 与 platform_device s3c_device_wdt 对应
*s3c_device_wdt 在arch/arm/plat-s3c24xx/devs.c中定义
*两者的工作顺序是先定义platform_device -> 注册 platform_device->
*在mini2440_machine_init()中完成
*再定义 platform_driver-> 注册 platform_driver
*/
static struct platform_driver s3c2410wdt_driver = {
.probe = s3c2410wdt_probe, //设备的检测，所以需要先注册设备
.remove = __devexit_p(s3c2410wdt_remove), //删除该设备
.shutdown = s3c2410wdt_shutdown, //关闭该设备
.suspend = s3c2410wdt_suspend,
.resume = s3c2410wdt_resume,
.driver = { //设备驱动
.owner = THIS_MODULE,
/*
*对应 struct platform_device s3c_device_wdt = {
* .name = "s3c2410-wdt",
* ...
* };
*/
.name = "s3c2410-wdt",
},
};
static char banner[] __initdata =
KERN_INFO "S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics\n";
static int __init watchdog_init(void) //模块初始化
{
printk(banner); //打印信息
return platform_driver_register(&s3c2410wdt_driver); //注册设备的驱动程序
}
static void __exit watchdog_exit(void) //移除模块
{
platform_driver_unregister(&s3c2410wdt_driver); //unregister a driver for platform-level devices
}
module_init(watchdog_init);
module_exit(watchdog_exit);
MODULE_AUTHOR("Ben Dooks , "
"Dimitry Andric ");
MODULE_DESCRIPTION("S3C2410 Watchdog Device Driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
MODULE_ALIAS("platform:s3c2410-wdt");