#include <linux/fs.h>
#include <linux/version.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>

MODULE_LICENSE("GPL");

static void GameDeviceRelease( struct device *dev );
int GameClassHotplug( struct class_device *dev, char **envp,
    int num_envp, char *buffer, int buffer_size );
void GameClassRelease( struct class_device *dev );

static struct device_driver GameDriver = {
    .name = "GameDriver",
    .bus = &platform_bus_type,
};
struct platform_device GameDevice = {
    .name  = "GameDevice",
    .id    = 0,
    .dev = {
        .release = GameDeviceRelease,
    }
};
static struct class GameClass = {
    .name = "GameClass",
    .hotplug = GameClassHotplug,
    .release = GameClassRelease,
};

static struct class_device GameClassDevice = {
    .class = &GameClass,
};
static struct file_operations Fops;
static DECLARE_COMPLETION( DevObjectIsFree );

static void GameDeviceRelease( struct device *dev )
{
    complete( &DevObjectIsFree );
}

int GameClassHotplug( struct class_device *dev, char **envp,
    int num_envp, char *buffer, int buffer_size)
{
    printk("GameClassHotplug( %p )\n", dev );
    return 0;
}
void GameClassRelease( struct class_device *dev )
{
    printk("GameClassRelease( %p )\n", dev );
}

static int __init DrvInit(void)
{
    if(register_chrdev(240, "gamedevice", &Fops) == 0) {
        driver_register(&GameDriver);
        platform_device_register( &GameDevice );
        GameDevice.dev.driver = &GameDriver;
        device_bind_driver( &GameDevice.dev );
        class_register( &GameClass );
        GameClassDevice.dev = &GameDevice.dev;
        strlcpy( (void *)&GameClassDevice.class_id,
            "GameClassDevice", 16 );
        class_device_register( &GameClassDevice );
        return 0;
    }
    return -EIO;
}

static void __exit DrvExit(void)
{
    class_device_unregister( &GameClassDevice );
    class_unregister( &GameClass );
    device_release_driver( &GameDevice.dev );
    platform_device_unregister( &GameDevice );
    driver_unregister(&GameDriver);
    unregister_chrdev(240,"gamedevice");
    wait_for_completion( &DevObjectIsFree );
}

module_init( DrvInit );
module_exit( DrvExit );