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(struct inode *ptmx_inode); 21 void devpts_kill_index(struct inode *ptmx_inode, int idx); 22 /* mknod in devpts */ 23 int devpts_pty_new(struct inode *ptmx_inode, struct tty_struct *tty); 24 /* get private structure */ 25 void *devpts_get_priv(struct inode *pts_inode); 26 /* unlink */ 27 void devpts_pty_kill(struct tty_struct *tty); 28 29 #else 30 31 /* Dummy stubs in the no-pty case */ 32 static inline int devpts_new_index(struct inode *ptmx_inode) { return -EINVAL; } 33 static inline void devpts_kill_index(struct inode *ptmx_inode, int idx) { } 34 static inline int devpts_pty_new(struct inode *ptmx_inode, 35 struct tty_struct *tty) 36 { 37 return -EINVAL; 38 } 39 static inline void *devpts_get_priv(struct inode *pts_inode) 40 { 41 return NULL; 42 } 43 static inline void devpts_pty_kill(struct tty_struct *tty) { } 44 45 #endif 46 47 48 #endif /* _LINUX_DEVPTS_FS_H */ 49