学步园

mail:bookworepeng@Hotmail.com

qq:196568501

author:Driver Monkey

phone:13410905075

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


MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("Driver Monkey");

static int monkey_match(struct device *dev, 
								struct device_driver *driver)
{
	printk(KERN_INFO"monkey_match()++\n");

	printk(KERN_INFO"monkey_match()--\n");

	return 0;
}

static int monkey_uevent(struct device *dev, struct kobj_uevent_env *env)
{
	printk(KERN_INFO"monkey_hotplug()++\n");
	
	printk(KERN_INFO"monkey_hotplug()++\n");	

	return 0;
}

struct bus_type monkey_bus_type = 
{
	.name = "monkey_bus",
	.match = monkey_match,
	.uevent = monkey_uevent,
};


static int monkey_init(void)
{
	int err = 0;

	printk("monkey_init()++\n");
	
	err = bus_register(&monkey_bus_type);
	if(err < 0)
		return err;
		
	printk("monkey_init()--\n");
	
	return 0;
}

static void monkey_exit(void)
{
	printk(KERN_INFO"monkey_exit()++\n");
	
	bus_unregister(&monkey_bus_type);
	
	printk(KERN_INFO"monkey_exit()--\n");
}

module_init(monkey_init);
module_exit(monkey_exit);

查看路径注册成功：

/sys/bus # ls
i2c         monkey_bus  scsi        spi
mdio_bus    platform    serio       usb