|  | /* -*- linux-c -*- --------------------------------------------------------- * | 
|  | * | 
|  | * linux/include/linux/devpts_fs.h | 
|  | * | 
|  | *  Copyright 1998-2004 H. Peter Anvin -- All Rights Reserved | 
|  | * | 
|  | * This file is part of the Linux kernel and is made available under | 
|  | * the terms of the GNU General Public License, version 2, or at your | 
|  | * option, any later version, incorporated herein by reference. | 
|  | * | 
|  | * ------------------------------------------------------------------------- */ | 
|  |  | 
|  | #ifndef _LINUX_DEVPTS_FS_H | 
|  | #define _LINUX_DEVPTS_FS_H | 
|  |  | 
|  | #include <linux/errno.h> | 
|  |  | 
|  | #ifdef CONFIG_UNIX98_PTYS | 
|  |  | 
|  | int devpts_pty_new(struct tty_struct *tty);      /* mknod in devpts */ | 
|  | struct tty_struct *devpts_get_tty(int number);	 /* get tty structure */ | 
|  | void devpts_pty_kill(int number);		 /* unlink */ | 
|  |  | 
|  | #else | 
|  |  | 
|  | /* Dummy stubs in the no-pty case */ | 
|  | static inline int devpts_pty_new(struct tty_struct *tty) { return -EINVAL; } | 
|  | static inline struct tty_struct *devpts_get_tty(int number) { return NULL; } | 
|  | static inline void devpts_pty_kill(int number) { } | 
|  |  | 
|  | #endif | 
|  |  | 
|  |  | 
|  | #endif /* _LINUX_DEVPTS_FS_H */ |