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git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/blob - include/linux/debugfs.h
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 #include <linux/types.h>
22 struct file_operations
;
24 struct debugfs_blob_wrapper
{
29 #if defined(CONFIG_DEBUG_FS)
30 struct dentry
*debugfs_create_file(const char *name
, mode_t mode
,
31 struct dentry
*parent
, void *data
,
32 const struct file_operations
*fops
);
34 struct dentry
*debugfs_create_dir(const char *name
, struct dentry
*parent
);
36 struct dentry
*debugfs_create_symlink(const char *name
, struct dentry
*parent
,
39 void debugfs_remove(struct dentry
*dentry
);
41 struct dentry
*debugfs_create_u8(const char *name
, mode_t mode
,
42 struct dentry
*parent
, u8
*value
);
43 struct dentry
*debugfs_create_u16(const char *name
, mode_t mode
,
44 struct dentry
*parent
, u16
*value
);
45 struct dentry
*debugfs_create_u32(const char *name
, mode_t mode
,
46 struct dentry
*parent
, u32
*value
);
47 struct dentry
*debugfs_create_bool(const char *name
, mode_t mode
,
48 struct dentry
*parent
, u32
*value
);
50 struct dentry
*debugfs_create_blob(const char *name
, mode_t mode
,
51 struct dentry
*parent
,
52 struct debugfs_blob_wrapper
*blob
);
55 #include <linux/err.h>
58 * We do not return NULL from these functions if CONFIG_DEBUG_FS is not enabled
59 * so users have a chance to detect if there was a real error or not. We don't
60 * want to duplicate the design decision mistakes of procfs and devfs again.
63 static inline struct dentry
*debugfs_create_file(const char *name
, mode_t mode
,
64 struct dentry
*parent
, void *data
,
65 const struct file_operations
*fops
)
67 return ERR_PTR(-ENODEV
);
70 static inline struct dentry
*debugfs_create_dir(const char *name
,
71 struct dentry
*parent
)
73 return ERR_PTR(-ENODEV
);
76 static inline struct dentry
*debugfs_create_symlink(const char *name
,
77 struct dentry
*parent
,
80 return ERR_PTR(-ENODEV
);
83 static inline void debugfs_remove(struct dentry
*dentry
)
86 static inline struct dentry
*debugfs_create_u8(const char *name
, mode_t mode
,
87 struct dentry
*parent
,
90 return ERR_PTR(-ENODEV
);
93 static inline struct dentry
*debugfs_create_u16(const char *name
, mode_t mode
,
94 struct dentry
*parent
,
97 return ERR_PTR(-ENODEV
);
100 static inline struct dentry
*debugfs_create_u32(const char *name
, mode_t mode
,
101 struct dentry
*parent
,
104 return ERR_PTR(-ENODEV
);
107 static inline struct dentry
*debugfs_create_bool(const char *name
, mode_t mode
,
108 struct dentry
*parent
,
111 return ERR_PTR(-ENODEV
);
114 static inline struct dentry
*debugfs_create_blob(const char *name
, mode_t mode
,
115 struct dentry
*parent
,
116 struct debugfs_blob_wrapper
*blob
)
118 return ERR_PTR(-ENODEV
);