1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _LINUX_CDEV_H 3*4882a593Smuzhiyun #define _LINUX_CDEV_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <linux/kobject.h> 6*4882a593Smuzhiyun #include <linux/kdev_t.h> 7*4882a593Smuzhiyun #include <linux/list.h> 8*4882a593Smuzhiyun #include <linux/device.h> 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun struct file_operations; 11*4882a593Smuzhiyun struct inode; 12*4882a593Smuzhiyun struct module; 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun struct cdev { 15*4882a593Smuzhiyun struct kobject kobj; 16*4882a593Smuzhiyun struct module *owner; 17*4882a593Smuzhiyun const struct file_operations *ops; 18*4882a593Smuzhiyun struct list_head list; 19*4882a593Smuzhiyun dev_t dev; 20*4882a593Smuzhiyun unsigned int count; 21*4882a593Smuzhiyun } __randomize_layout; 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun void cdev_init(struct cdev *, const struct file_operations *); 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun struct cdev *cdev_alloc(void); 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun void cdev_put(struct cdev *p); 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun int cdev_add(struct cdev *, dev_t, unsigned); 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun void cdev_set_parent(struct cdev *p, struct kobject *kobj); 32*4882a593Smuzhiyun int cdev_device_add(struct cdev *cdev, struct device *dev); 33*4882a593Smuzhiyun void cdev_device_del(struct cdev *cdev, struct device *dev); 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun void cdev_del(struct cdev *); 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun void cd_forget(struct inode *); 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun #endif 40