/*
 * sysfs.h - definitions for the device driver filesystem
 *
 * Copyright (c) 2001,2002 Patrick Mochel
 *
 * Please see Documentation/filesystems/sysfs.txt for more information.
 */

#ifndef _SYSFS_H_
#define _SYSFS_H_

struct kobject;
struct module;

struct attribute {
	char			* name;
	struct module 		* owner;
	mode_t			mode;
};

struct attribute_group {
	char			* name;
	struct attribute	** attrs;
};


struct bin_attribute {
	struct attribute	attr;
	size_t			size;
	ssize_t (*read)(struct kobject *, char *, loff_t, size_t);
	ssize_t (*write)(struct kobject *, char *, loff_t, size_t);
};

struct sysfs_ops {
	ssize_t	(*show)(struct kobject *, struct attribute *,char *);
	ssize_t	(*store)(struct kobject *,struct attribute *,const char *, size_t);
};

#ifdef CONFIG_SYSFS

extern int
sysfs_create_dir(struct kobject *);

extern void
sysfs_remove_dir(struct kobject *);

extern void
sysfs_rename_dir(struct kobject *, const char *new_name);

extern int
sysfs_create_file(struct kobject *, const struct attribute *);

extern int
sysfs_update_file(struct kobject *, const struct attribute *);

extern void
sysfs_remove_file(struct kobject *, const struct attribute *);

extern int 
sysfs_create_link(struct kobject * kobj, struct kobject * target, char * name);

extern void
sysfs_remove_link(struct kobject *, char * name);

int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr);
int sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr);

int sysfs_create_group(struct kobject *, const struct attribute_group *);
void sysfs_remove_group(struct kobject *, const struct attribute_group *);

#else /* CONFIG_SYSFS */

static inline int sysfs_create_dir(struct kobject * k)
{
	return 0;
}

static inline void sysfs_remove_dir(struct kobject * k)
{
	;
}

static inline void sysfs_rename_dir(struct kobject * k, const char *new_name)
{
	;
}

static inline int sysfs_create_file(struct kobject * k, const struct attribute * a)
{
	return 0;
}

static inline int sysfs_update_file(struct kobject * k, const struct attribute * a)
{
	return 0;
}

static inline void sysfs_remove_file(struct kobject * k, const struct attribute * a)
{
	;
}

static inline int sysfs_create_link(struct kobject * k, struct kobject * t, char * n)
{
	return 0;
}

static inline void sysfs_remove_link(struct kobject * k, char * name)
{
	;
}


static inline int sysfs_create_bin_file(struct kobject * k, struct bin_attribute * a)
{
	return 0;
}

static inline int sysfs_remove_bin_file(struct kobject * k, struct bin_attribute * a)
{
	return 0;
}

static inline int sysfs_create_group(struct kobject * k, const struct attribute_group *g)
{
	return 0;
}

static inline void sysfs_remove_group(struct kobject * k, const struct attribute_group * g)
{
	;
}

#endif /* CONFIG_SYSFS */

#endif /* _SYSFS_H_ */