#ifndef _LINUX_CDEV_H#define _LINUX_CDEV_H #include <linux/kobject.h>#include <linux/kdev_t.h>#include <linux/list.h>#include <linux/device.h> struct file_operations;struct inode;struct module; struct cdev {	struct kobject kobj;	struct module *owner;	const struct file_operations *ops;	struct list_head list;	dev_t dev;	unsigned int count;} __randomize_layout; void cdev_init(struct cdev *, const struct file_operations *); struct cdev *cdev_alloc(void); void cdev_put(struct cdev *p); int cdev_add(struct cdev *, dev_t, unsigned); void cdev_set_parent(struct cdev *p, struct kobject *kobj);int cdev_device_add(struct cdev *cdev, struct device *dev);void cdev_device_del(struct cdev *cdev, struct device *dev); void cdev_del(struct cdev *); void cd_forget(struct inode *); #endif