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 | 29 | #if defined(CONFIG_DEBUG_FS) |
3634634e HH |
30 | |
31 | /* declared over in file.c */ | |
32 | extern const struct file_operations debugfs_file_operations; | |
33 | extern const struct inode_operations debugfs_link_operations; | |
34 | ||
1da177e4 LT |
35 | struct dentry *debugfs_create_file(const char *name, mode_t mode, |
36 | struct dentry *parent, void *data, | |
99ac48f5 | 37 | const struct file_operations *fops); |
1da177e4 LT |
38 | |
39 | struct dentry *debugfs_create_dir(const char *name, struct dentry *parent); | |
40 | ||
66f54963 PO |
41 | struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent, |
42 | const char *dest); | |
43 | ||
1da177e4 LT |
44 | void debugfs_remove(struct dentry *dentry); |
45 | ||
cfc94cdf JK |
46 | struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry, |
47 | struct dentry *new_dir, const char *new_name); | |
48 | ||
1da177e4 LT |
49 | struct dentry *debugfs_create_u8(const char *name, mode_t mode, |
50 | struct dentry *parent, u8 *value); | |
51 | struct dentry *debugfs_create_u16(const char *name, mode_t mode, | |
52 | struct dentry *parent, u16 *value); | |
53 | struct dentry *debugfs_create_u32(const char *name, mode_t mode, | |
54 | struct dentry *parent, u32 *value); | |
8447891f ME |
55 | struct dentry *debugfs_create_u64(const char *name, mode_t mode, |
56 | struct dentry *parent, u64 *value); | |
2ebefc50 RG |
57 | struct dentry *debugfs_create_x8(const char *name, mode_t mode, |
58 | struct dentry *parent, u8 *value); | |
59 | struct dentry *debugfs_create_x16(const char *name, mode_t mode, | |
60 | struct dentry *parent, u16 *value); | |
61 | struct dentry *debugfs_create_x32(const char *name, mode_t mode, | |
62 | struct dentry *parent, u32 *value); | |
1da177e4 LT |
63 | struct dentry *debugfs_create_bool(const char *name, mode_t mode, |
64 | struct dentry *parent, u32 *value); | |
65 | ||
dd308bc3 ME |
66 | struct dentry *debugfs_create_blob(const char *name, mode_t mode, |
67 | struct dentry *parent, | |
68 | struct debugfs_blob_wrapper *blob); | |
1da177e4 | 69 | #else |
a7a76cef RD |
70 | |
71 | #include <linux/err.h> | |
72 | ||
1da177e4 LT |
73 | /* |
74 | * We do not return NULL from these functions if CONFIG_DEBUG_FS is not enabled | |
75 | * so users have a chance to detect if there was a real error or not. We don't | |
76 | * want to duplicate the design decision mistakes of procfs and devfs again. | |
77 | */ | |
78 | ||
79 | static inline struct dentry *debugfs_create_file(const char *name, mode_t mode, | |
bde11d79 JD |
80 | struct dentry *parent, void *data, |
81 | const struct file_operations *fops) | |
1da177e4 LT |
82 | { |
83 | return ERR_PTR(-ENODEV); | |
84 | } | |
85 | ||
86 | static inline struct dentry *debugfs_create_dir(const char *name, | |
87 | struct dentry *parent) | |
88 | { | |
89 | return ERR_PTR(-ENODEV); | |
90 | } | |
91 | ||
66f54963 PO |
92 | static inline struct dentry *debugfs_create_symlink(const char *name, |
93 | struct dentry *parent, | |
94 | const char *dest) | |
95 | { | |
96 | return ERR_PTR(-ENODEV); | |
97 | } | |
98 | ||
1da177e4 LT |
99 | static inline void debugfs_remove(struct dentry *dentry) |
100 | { } | |
101 | ||
cfc94cdf JK |
102 | static inline struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry, |
103 | struct dentry *new_dir, char *new_name) | |
104 | { | |
105 | return ERR_PTR(-ENODEV); | |
106 | } | |
107 | ||
1da177e4 LT |
108 | static inline struct dentry *debugfs_create_u8(const char *name, mode_t mode, |
109 | struct dentry *parent, | |
110 | u8 *value) | |
111 | { | |
112 | return ERR_PTR(-ENODEV); | |
113 | } | |
114 | ||
115 | static inline struct dentry *debugfs_create_u16(const char *name, mode_t mode, | |
116 | struct dentry *parent, | |
7b558637 | 117 | u16 *value) |
1da177e4 LT |
118 | { |
119 | return ERR_PTR(-ENODEV); | |
120 | } | |
121 | ||
122 | static inline struct dentry *debugfs_create_u32(const char *name, mode_t mode, | |
123 | struct dentry *parent, | |
7b558637 | 124 | u32 *value) |
1da177e4 LT |
125 | { |
126 | return ERR_PTR(-ENODEV); | |
127 | } | |
128 | ||
8447891f ME |
129 | static inline struct dentry *debugfs_create_u64(const char *name, mode_t mode, |
130 | struct dentry *parent, | |
131 | u64 *value) | |
132 | { | |
133 | return ERR_PTR(-ENODEV); | |
134 | } | |
135 | ||
2ebefc50 RG |
136 | static inline struct dentry *debugfs_create_x8(const char *name, mode_t mode, |
137 | struct dentry *parent, | |
138 | u8 *value) | |
139 | { | |
140 | return ERR_PTR(-ENODEV); | |
141 | } | |
142 | ||
143 | static inline struct dentry *debugfs_create_x16(const char *name, mode_t mode, | |
144 | struct dentry *parent, | |
145 | u16 *value) | |
146 | { | |
147 | return ERR_PTR(-ENODEV); | |
148 | } | |
149 | ||
150 | static inline struct dentry *debugfs_create_x32(const char *name, mode_t mode, | |
151 | struct dentry *parent, | |
152 | u32 *value) | |
153 | { | |
154 | return ERR_PTR(-ENODEV); | |
155 | } | |
156 | ||
1da177e4 LT |
157 | static inline struct dentry *debugfs_create_bool(const char *name, mode_t mode, |
158 | struct dentry *parent, | |
7b558637 | 159 | u32 *value) |
1da177e4 LT |
160 | { |
161 | return ERR_PTR(-ENODEV); | |
162 | } | |
163 | ||
dd308bc3 ME |
164 | static inline struct dentry *debugfs_create_blob(const char *name, mode_t mode, |
165 | struct dentry *parent, | |
166 | struct debugfs_blob_wrapper *blob) | |
167 | { | |
168 | return ERR_PTR(-ENODEV); | |
169 | } | |
170 | ||
1da177e4 LT |
171 | #endif |
172 | ||
173 | #endif |