devpts_fs.h (1156B)
1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* -*- linux-c -*- --------------------------------------------------------- * 3 * 4 * linux/include/linux/devpts_fs.h 5 * 6 * Copyright 1998-2004 H. Peter Anvin -- All Rights Reserved 7 * 8 * ------------------------------------------------------------------------- */ 9 10#ifndef _LINUX_DEVPTS_FS_H 11#define _LINUX_DEVPTS_FS_H 12 13#include <linux/errno.h> 14 15#ifdef CONFIG_UNIX98_PTYS 16 17struct pts_fs_info; 18 19struct vfsmount *devpts_mntget(struct file *, struct pts_fs_info *); 20struct pts_fs_info *devpts_acquire(struct file *); 21void devpts_release(struct pts_fs_info *); 22 23int devpts_new_index(struct pts_fs_info *); 24void devpts_kill_index(struct pts_fs_info *, int); 25 26/* mknod in devpts */ 27struct dentry *devpts_pty_new(struct pts_fs_info *, int, void *); 28/* get private structure */ 29void *devpts_get_priv(struct dentry *); 30/* unlink */ 31void devpts_pty_kill(struct dentry *); 32 33/* in pty.c */ 34int ptm_open_peer(struct file *master, struct tty_struct *tty, int flags); 35 36#else 37static inline int 38ptm_open_peer(struct file *master, struct tty_struct *tty, int flags) 39{ 40 return -EIO; 41} 42#endif 43 44 45#endif /* _LINUX_DEVPTS_FS_H */