release/src-rt-6.x.4708/linux/linux-2.6.36/include/linux/cdev.h

   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
   8 struct file_operations;
   9 struct inode;
  10 struct module;
  11
  12 struct 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
  21 void cdev_init(struct cdev *, const struct file_operations *);
  22
  23 struct cdev *cdev_alloc(void);
  24
  25 void cdev_put(struct cdev *p);
  26
  27 int cdev_add(struct cdev *, dev_t, unsigned);
  28
  29 void cdev_del(struct cdev *);
  30
  31 int cdev_index(struct inode *inode);
  32
  33 void cd_forget(struct inode *);
  34
  35 extern struct backing_dev_info directly_mappable_cdev_bdi;
  36
  37 #endif