4 #include <linux/kobject.h>
5 #include <linux/kdev_t.h>
6 #include <linux/list.h>
8 struct file_operations;
15 const struct file_operations *ops;
16 struct list_head list;
21 void cdev_init(struct cdev *, const struct file_operations *);
23 struct cdev *cdev_alloc(void);
25 void cdev_put(struct cdev *p);
27 int cdev_add(struct cdev *, dev_t, unsigned);
29 void cdev_del(struct cdev *);
31 void cd_forget(struct inode *);
33 extern struct backing_dev_info directly_mappable_cdev_bdi;