2 * debugfs.h - a tiny little debug file system
4 * Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
5 * Copyright (C) 2004 IBM Inc.
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version
9 * 2 as published by the Free Software Foundation.
11 * debugfs is for people to use instead of /proc or /sys.
12 * See Documentation/DocBook/kernel-api for more details.
20 #if defined(CONFIG_DEBUG_FS)
21 struct dentry *debugfs_create_file(const char *name, mode_t mode,
22 struct dentry *parent, void *data,
23 struct file_operations *fops);
25 struct dentry *debugfs_create_dir(const char *name, struct dentry *parent);
27 void debugfs_remove(struct dentry *dentry);
29 struct dentry *debugfs_create_u8(const char *name, mode_t mode,
30 struct dentry *parent, u8 *value);
31 struct dentry *debugfs_create_u16(const char *name, mode_t mode,
32 struct dentry *parent, u16 *value);
33 struct dentry *debugfs_create_u32(const char *name, mode_t mode,
34 struct dentry *parent, u32 *value);
35 struct dentry *debugfs_create_bool(const char *name, mode_t mode,
36 struct dentry *parent, u32 *value);
40 * We do not return NULL from these functions if CONFIG_DEBUG_FS is not enabled
41 * so users have a chance to detect if there was a real error or not. We don't
42 * want to duplicate the design decision mistakes of procfs and devfs again.
45 static inline struct dentry *debugfs_create_file(const char *name, mode_t mode,
46 struct dentry *parent,
48 struct file_operations *fops)
50 return ERR_PTR(-ENODEV);
53 static inline struct dentry *debugfs_create_dir(const char *name,
54 struct dentry *parent)
56 return ERR_PTR(-ENODEV);
59 static inline void debugfs_remove(struct dentry *dentry)
62 static inline struct dentry *debugfs_create_u8(const char *name, mode_t mode,
63 struct dentry *parent,
66 return ERR_PTR(-ENODEV);
69 static inline struct dentry *debugfs_create_u16(const char *name, mode_t mode,
70 struct dentry *parent,
73 return ERR_PTR(-ENODEV);
76 static inline struct dentry *debugfs_create_u32(const char *name, mode_t mode,
77 struct dentry *parent,
80 return ERR_PTR(-ENODEV);
83 static inline struct dentry *debugfs_create_bool(const char *name, mode_t mode,
84 struct dentry *parent,
87 return ERR_PTR(-ENODEV);