debugfs.h
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上传日期:2009-04-28
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文件大小:3k
- /*
- * debugfs.h - a tiny little debug file system
- *
- * Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
- * Copyright (C) 2004 IBM Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * debugfs is for people to use instead of /proc or /sys.
- * See Documentation/DocBook/kernel-api for more details.
- */
- #ifndef _DEBUGFS_H_
- #define _DEBUGFS_H_
- #include <linux/fs.h>
- #include <linux/types.h>
- struct file_operations;
- #if defined(CONFIG_DEBUG_FS)
- struct dentry *debugfs_create_file(const char *name, mode_t mode,
- struct dentry *parent, void *data,
- struct file_operations *fops);
- struct dentry *debugfs_create_dir(const char *name, struct dentry *parent);
- void debugfs_remove(struct dentry *dentry);
- struct dentry *debugfs_create_u8(const char *name, mode_t mode,
- struct dentry *parent, u8 *value);
- struct dentry *debugfs_create_u16(const char *name, mode_t mode,
- struct dentry *parent, u16 *value);
- struct dentry *debugfs_create_u32(const char *name, mode_t mode,
- struct dentry *parent, u32 *value);
- struct dentry *debugfs_create_bool(const char *name, mode_t mode,
- struct dentry *parent, u32 *value);
- #else
- #include <linux/err.h>
- /*
- * We do not return NULL from these functions if CONFIG_DEBUG_FS is not enabled
- * so users have a chance to detect if there was a real error or not. We don't
- * want to duplicate the design decision mistakes of procfs and devfs again.
- */
- static inline struct dentry *debugfs_create_file(const char *name, mode_t mode,
- struct dentry *parent,
- void *data,
- struct file_operations *fops)
- {
- return ERR_PTR(-ENODEV);
- }
- static inline struct dentry *debugfs_create_dir(const char *name,
- struct dentry *parent)
- {
- return ERR_PTR(-ENODEV);
- }
- static inline void debugfs_remove(struct dentry *dentry)
- { }
- static inline struct dentry *debugfs_create_u8(const char *name, mode_t mode,
- struct dentry *parent,
- u8 *value)
- {
- return ERR_PTR(-ENODEV);
- }
- static inline struct dentry *debugfs_create_u16(const char *name, mode_t mode,
- struct dentry *parent,
- u16 *value)
- {
- return ERR_PTR(-ENODEV);
- }
- static inline struct dentry *debugfs_create_u32(const char *name, mode_t mode,
- struct dentry *parent,
- u32 *value)
- {
- return ERR_PTR(-ENODEV);
- }
- static inline struct dentry *debugfs_create_bool(const char *name, mode_t mode,
- struct dentry *parent,
- u32 *value)
- {
- return ERR_PTR(-ENODEV);
- }
- #endif
- #endif