1#ifndef _LINUX_CDEV_H 2#define _LINUX_CDEV_H 3 4#include <linux/kobject.h> 5#include <linux/kdev_t.h> 6#include <linux/list.h> 7#include <linux/device.h> 8 9struct file_operations; 10struct inode; 11struct module; 12 13struct cdev { 14 struct kobject kobj; 15 struct module *owner; 16 const struct file_operations *ops; 17 struct list_head list; 18 dev_t dev; 19 unsigned int count; 20} __randomize_layout; 21 22void cdev_init(struct cdev *, const struct file_operations *); 23 24struct cdev *cdev_alloc(void); 25 26void cdev_put(struct cdev *p); 27 28int cdev_add(struct cdev *, dev_t, unsigned); 29 30void cdev_set_parent(struct cdev *p, struct kobject *kobj); 31int cdev_device_add(struct cdev *cdev, struct device *dev); 32void cdev_device_del(struct cdev *cdev, struct device *dev); 33 34void cdev_del(struct cdev *); 35 36void cd_forget(struct inode *); 37 38#endif 39