Commit | Line | Data |
---|---|---|
1da177e4 LT |
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 | ||
a7a76cef RD |
20 | #include <linux/types.h> |
21 | ||
22 | struct file_operations; | |
23 | ||
dd308bc3 ME |
24 | struct debugfs_blob_wrapper { |
25 | void *data; | |
26 | unsigned long size; | |
27 | }; | |
28 | ||
1da177e4 LT |
29 | #if defined(CONFIG_DEBUG_FS) |
30 | struct dentry *debugfs_create_file(const char *name, mode_t mode, | |
31 | struct dentry *parent, void *data, | |
99ac48f5 | 32 | const struct file_operations *fops); |
1da177e4 LT |
33 | |
34 | struct dentry *debugfs_create_dir(const char *name, struct dentry *parent); | |
35 | ||
66f54963 PO |
36 | struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent, |
37 | const char *dest); | |
38 | ||
1da177e4 LT |
39 | void debugfs_remove(struct dentry *dentry); |
40 | ||
cfc94cdf JK |
41 | struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry, |
42 | struct dentry *new_dir, const char *new_name); | |
43 | ||
1da177e4 LT |
44 | struct dentry *debugfs_create_u8(const char *name, mode_t mode, |
45 | struct dentry *parent, u8 *value); | |
46 | struct dentry *debugfs_create_u16(const char *name, mode_t mode, | |
47 | struct dentry *parent, u16 *value); | |
48 | struct dentry *debugfs_create_u32(const char *name, mode_t mode, | |
49 | struct dentry *parent, u32 *value); | |
8447891f ME |
50 | struct dentry *debugfs_create_u64(const char *name, mode_t mode, |
51 | struct dentry *parent, u64 *value); | |
2ebefc50 RG |
52 | struct dentry *debugfs_create_x8(const char *name, mode_t mode, |
53 | struct dentry *parent, u8 *value); | |
54 | struct dentry *debugfs_create_x16(const char *name, mode_t mode, | |
55 | struct dentry *parent, u16 *value); | |
56 | struct dentry *debugfs_create_x32(const char *name, mode_t mode, | |
57 | struct dentry *parent, u32 *value); | |
1da177e4 LT |
58 | struct dentry *debugfs_create_bool(const char *name, mode_t mode, |
59 | struct dentry *parent, u32 *value); | |
60 | ||
dd308bc3 ME |
61 | struct dentry *debugfs_create_blob(const char *name, mode_t mode, |
62 | struct dentry *parent, | |
63 | struct debugfs_blob_wrapper *blob); | |
1da177e4 | 64 | #else |
a7a76cef RD |
65 | |
66 | #include <linux/err.h> | |
67 | ||
1da177e4 LT |
68 | /* |
69 | * We do not return NULL from these functions if CONFIG_DEBUG_FS is not enabled | |
70 | * so users have a chance to detect if there was a real error or not. We don't | |
71 | * want to duplicate the design decision mistakes of procfs and devfs again. | |
72 | */ | |
73 | ||
74 | static inline struct dentry *debugfs_create_file(const char *name, mode_t mode, | |
bde11d79 JD |
75 | struct dentry *parent, void *data, |
76 | const struct file_operations *fops) | |
1da177e4 LT |
77 | { |
78 | return ERR_PTR(-ENODEV); | |
79 | } | |
80 | ||
81 | static inline struct dentry *debugfs_create_dir(const char *name, | |
82 | struct dentry *parent) | |
83 | { | |
84 | return ERR_PTR(-ENODEV); | |
85 | } | |
86 | ||
66f54963 PO |
87 | static inline struct dentry *debugfs_create_symlink(const char *name, |
88 | struct dentry *parent, | |
89 | const char *dest) | |
90 | { | |
91 | return ERR_PTR(-ENODEV); | |
92 | } | |
93 | ||
1da177e4 LT |
94 | static inline void debugfs_remove(struct dentry *dentry) |
95 | { } | |
96 | ||
cfc94cdf JK |
97 | static inline struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry, |
98 | struct dentry *new_dir, char *new_name) | |
99 | { | |
100 | return ERR_PTR(-ENODEV); | |
101 | } | |
102 | ||
1da177e4 LT |
103 | static inline struct dentry *debugfs_create_u8(const char *name, mode_t mode, |
104 | struct dentry *parent, | |
105 | u8 *value) | |
106 | { | |
107 | return ERR_PTR(-ENODEV); | |
108 | } | |
109 | ||
110 | static inline struct dentry *debugfs_create_u16(const char *name, mode_t mode, | |
111 | struct dentry *parent, | |
7b558637 | 112 | u16 *value) |
1da177e4 LT |
113 | { |
114 | return ERR_PTR(-ENODEV); | |
115 | } | |
116 | ||
117 | static inline struct dentry *debugfs_create_u32(const char *name, mode_t mode, | |
118 | struct dentry *parent, | |
7b558637 | 119 | u32 *value) |
1da177e4 LT |
120 | { |
121 | return ERR_PTR(-ENODEV); | |
122 | } | |
123 | ||
8447891f ME |
124 | static inline struct dentry *debugfs_create_u64(const char *name, mode_t mode, |
125 | struct dentry *parent, | |
126 | u64 *value) | |
127 | { | |
128 | return ERR_PTR(-ENODEV); | |
129 | } | |
130 | ||
2ebefc50 RG |
131 | static inline struct dentry *debugfs_create_x8(const char *name, mode_t mode, |
132 | struct dentry *parent, | |
133 | u8 *value) | |
134 | { | |
135 | return ERR_PTR(-ENODEV); | |
136 | } | |
137 | ||
138 | static inline struct dentry *debugfs_create_x16(const char *name, mode_t mode, | |
139 | struct dentry *parent, | |
140 | u16 *value) | |
141 | { | |
142 | return ERR_PTR(-ENODEV); | |
143 | } | |
144 | ||
145 | static inline struct dentry *debugfs_create_x32(const char *name, mode_t mode, | |
146 | struct dentry *parent, | |
147 | u32 *value) | |
148 | { | |
149 | return ERR_PTR(-ENODEV); | |
150 | } | |
151 | ||
1da177e4 LT |
152 | static inline struct dentry *debugfs_create_bool(const char *name, mode_t mode, |
153 | struct dentry *parent, | |
7b558637 | 154 | u32 *value) |
1da177e4 LT |
155 | { |
156 | return ERR_PTR(-ENODEV); | |
157 | } | |
158 | ||
dd308bc3 ME |
159 | static inline struct dentry *debugfs_create_blob(const char *name, mode_t mode, |
160 | struct dentry *parent, | |
161 | struct debugfs_blob_wrapper *blob) | |
162 | { | |
163 | return ERR_PTR(-ENODEV); | |
164 | } | |
165 | ||
1da177e4 LT |
166 | #endif |
167 | ||
168 | #endif |