linux - include/linux/cdev.h

35 lines · 639 B

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	void cd_forget(struct inode *);
32
33	extern struct backing_dev_info directly_mappable_cdev_bdi;
34
35	#endif