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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/debugfs.h
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/linux/debugfs.h')
-rw-r--r--include/linux/debugfs.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
new file mode 100644
index 00000000000..f7a7b86f6ee
--- /dev/null
+++ b/include/linux/debugfs.h
@@ -0,0 +1,92 @@
1/*
2 * debugfs.h - a tiny little debug file system
3 *
4 * Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
5 * Copyright (C) 2004 IBM Inc.
6 *
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.
10 *
11 * debugfs is for people to use instead of /proc or /sys.
12 * See Documentation/DocBook/kernel-api for more details.
13 */
14
15#ifndef _DEBUGFS_H_
16#define _DEBUGFS_H_
17
18#include <linux/fs.h>
19
20#if defined(CONFIG_DEBUG_FS)
21struct dentry *debugfs_create_file(const char *name, mode_t mode,
22 struct dentry *parent, void *data,
23 struct file_operations *fops);
24
25struct dentry *debugfs_create_dir(const char *name, struct dentry *parent);
26
27void debugfs_remove(struct dentry *dentry);
28
29struct dentry *debugfs_create_u8(const char *name, mode_t mode,
30 struct dentry *parent, u8 *value);
31struct dentry *debugfs_create_u16(const char *name, mode_t mode,
32 struct dentry *parent, u16 *value);
33struct dentry *debugfs_create_u32(const char *name, mode_t mode,
34 struct dentry *parent, u32 *value);
35struct dentry *debugfs_create_bool(const char *name, mode_t mode,
36 struct dentry *parent, u32 *value);
37
38#else
39/*
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.
43 */
44
45static inline struct dentry *debugfs_create_file(const char *name, mode_t mode,
46 struct dentry *parent,
47 void *data,
48 struct file_operations *fops)
49{
50 return ERR_PTR(-ENODEV);
51}
52
53static inline struct dentry *debugfs_create_dir(const char *name,
54 struct dentry *parent)
55{
56 return ERR_PTR(-ENODEV);
57}
58
59static inline void debugfs_remove(struct dentry *dentry)
60{ }
61
62static inline struct dentry *debugfs_create_u8(const char *name, mode_t mode,
63 struct dentry *parent,
64 u8 *value)
65{
66 return ERR_PTR(-ENODEV);
67}
68
69static inline struct dentry *debugfs_create_u16(const char *name, mode_t mode,
70 struct dentry *parent,
71 u8 *value)
72{
73 return ERR_PTR(-ENODEV);
74}
75
76static inline struct dentry *debugfs_create_u32(const char *name, mode_t mode,
77 struct dentry *parent,
78 u8 *value)
79{
80 return ERR_PTR(-ENODEV);
81}
82
83static inline struct dentry *debugfs_create_bool(const char *name, mode_t mode,
84 struct dentry *parent,
85 u8 *value)
86{
87 return ERR_PTR(-ENODEV);
88}
89
90#endif
91
92#endif