include/linux/cdev.h

   1 #ifndef _LINUX_CDEV_H
   2 #define _LINUX_CDEV_H
   3 #ifdef __KERNEL__
   4
   5 #include <linux/kobject.h>
   6 #include <linux/kdev_t.h>
   7 #include <linux/list.h>
   8
   9 struct file_operations;
  10 struct inode;
  11 struct module;
  12
  13 struct 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 };
  21
  22 void cdev_init(struct cdev *, const struct file_operations *);
  23
  24 struct cdev *cdev_alloc(void);
  25
  26 void cdev_put(struct cdev *p);
  27
  28 int cdev_add(struct cdev *, dev_t, unsigned);
  29
  30 void cdev_del(struct cdev *);
  31
  32 void cd_forget(struct inode *);
  33
  34 extern struct backing_dev_info directly_mappable_cdev_bdi;
  35
  36 #endif
  37 #endif