linux/include/linux/cdev.h
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   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
   8struct file_operations;
   9struct inode;
  10struct module;
  11
  12struct cdev {
  13        struct kobject kobj;
  14        struct module *owner;
  15        const struct file_operations *ops;
  16        struct list_head list;
  17        dev_t dev;
  18        unsigned int count;
  19};
  20
  21void cdev_init(struct cdev *, const struct file_operations *);
  22
  23struct cdev *cdev_alloc(void);
  24
  25void cdev_put(struct cdev *p);
  26
  27int cdev_add(struct cdev *, dev_t, unsigned);
  28
  29void cdev_del(struct cdev *);
  30
  31void cd_forget(struct inode *);
  32
  33extern struct backing_dev_info directly_mappable_cdev_bdi;
  34
  35#endif
  36
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