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1/* -*- linux-c -*- --------------------------------------------------------- *
2 *
3 * linux/include/linux/devpts_fs.h
4 *
5 * Copyright 1998-2004 H. Peter Anvin -- All Rights Reserved
6 *
7 * This file is part of the Linux kernel and is made available under
8 * the terms of the GNU General Public License, version 2, or at your
9 * option, any later version, incorporated herein by reference.
10 *
11 * ------------------------------------------------------------------------- */
12
13#ifndef _LINUX_DEVPTS_FS_H
14#define _LINUX_DEVPTS_FS_H
15
16#include <linux/errno.h>
17
18#ifdef CONFIG_UNIX98_PTYS
19
20int devpts_new_index(struct inode *ptmx_inode);
21void devpts_kill_index(struct inode *ptmx_inode, int idx);
22/* mknod in devpts */
23struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,
24 void *priv);
25/* get private structure */
26void *devpts_get_priv(struct inode *pts_inode);
27/* unlink */
28void devpts_pty_kill(struct inode *inode);
29
30#else
31
32/* Dummy stubs in the no-pty case */
33static inline int devpts_new_index(struct inode *ptmx_inode) { return -EINVAL; }
34static inline void devpts_kill_index(struct inode *ptmx_inode, int idx) { }
35static inline struct inode *devpts_pty_new(struct inode *ptmx_inode,
36 dev_t device, int index, void *priv)
37{
38 return ERR_PTR(-EINVAL);
39}
40static inline void *devpts_get_priv(struct inode *pts_inode)
41{
42 return NULL;
43}
44static inline void devpts_pty_kill(struct inode *inode) { }
45
46#endif
47
48
49#endif /* _LINUX_DEVPTS_FS_H */