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 20 int devpts_new_index(void); 21 void devpts_kill_index(int idx); 22 int devpts_pty_new(struct tty_struct *tty); /* mknod in devpts */ 23 struct tty_struct *devpts_get_tty(int number); /* get tty structure */ 24 void devpts_pty_kill(int number); /* unlink */ 25 26 #else 27 28 /* Dummy stubs in the no-pty case */ 29 static inline int devpts_new_index(void) { return -EINVAL; } 30 static inline void devpts_kill_index(int idx) { } 31 static inline int devpts_pty_new(struct tty_struct *tty) { return -EINVAL; } 32 static inline struct tty_struct *devpts_get_tty(int number) { return NULL; } 33 static inline void devpts_pty_kill(int number) { } 34 35 #endif 36 37 38 #endif /* _LINUX_DEVPTS_FS_H */ 39