| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | #ifndef _LINUX_CDEV_H |
| 3 | #define _LINUX_CDEV_H |
| 4 | |
| 5 | #include <linux/kobject.h> |
| 6 | #include <linux/kdev_t.h> |
| 7 | #include <linux/list.h> |
| 8 | #include <linux/device.h> |
| 9 | |
| 10 | struct file_operations; |
| 11 | struct inode; |
| 12 | struct module; |
| 13 | |
| 14 | struct cdev { |
| 15 | struct kobject kobj; |
| 16 | struct module *owner; |
| 17 | const struct file_operations *ops; |
| 18 | struct list_head list; |
| 19 | dev_t dev; |
| 20 | unsigned int count; |
| 21 | } __randomize_layout; |
| 22 | |
| 23 | void cdev_init(struct cdev *, const struct file_operations *); |
| 24 | |
| 25 | struct cdev *cdev_alloc(void); |
| 26 | |
| 27 | void cdev_put(struct cdev *p); |
| 28 | |
| 29 | int cdev_add(struct cdev *, dev_t, unsigned); |
| 30 | |
| 31 | void cdev_set_parent(struct cdev *p, struct kobject *kobj); |
| 32 | int cdev_device_add(struct cdev *cdev, struct device *dev); |
| 33 | void cdev_device_del(struct cdev *cdev, struct device *dev); |
| 34 | |
| 35 | void cdev_del(struct cdev *); |
| 36 | |
| 37 | void cd_forget(struct inode *); |
| 38 | |
| 39 | #endif |
| 40 |