1 files changed, 182 insertions, 0 deletions
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
new file mode 100644
index 000000000000..6f502ff7902a
--- /dev/null
+++ b/include/linux/sysfs.h
@@ -0,0 +1,182 @@
+/*
+ * sysfs.h - definitions for the device driver filesystem
+ *
+ * Copyright (c) 2001,2002 Patrick Mochel
+ * Copyright (c) 2004 Silicon Graphics, Inc.
+ *
+ * Please see Documentation/filesystems/sysfs.txt for more information.
+ */
+
+#ifndef _SYSFS_H_
+#define _SYSFS_H_
+
+#include <asm/atomic.h>
+
+struct kobject;
+struct module;
+
+struct attribute {
+	char			* name;
+	struct module 		* owner;
+	mode_t			mode;
+};
+
+struct attribute_group {
+	char			* name;
+	struct attribute	** attrs;
+};
+
+
+
+/**
+ * Use these macros to make defining attributes easier. See include/linux/device.h
+ * for examples..
+ */
+
+#define __ATTR(_name,_mode,_show,_store) { \
+	.attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE },	\
+	.show	= _show,					\
+	.store	= _store,					\
+}
+
+#define __ATTR_RO(_name) { \
+	.attr	= { .name = __stringify(_name), .mode = 0444, .owner = THIS_MODULE },	\
+	.show	= _name##_show,	\
+}
+
+#define __ATTR_NULL { .attr = { .name = NULL } }
+
+#define attr_name(_attr) (_attr).attr.name
+
+struct vm_area_struct;
+
+struct bin_attribute {
+	struct attribute	attr;
+	size_t			size;
+	void			*private;
+	ssize_t (*read)(struct kobject *, char *, loff_t, size_t);
+	ssize_t (*write)(struct kobject *, char *, loff_t, size_t);
+	int (*mmap)(struct kobject *, struct bin_attribute *attr,
+		    struct vm_area_struct *vma);
+};
+
+struct sysfs_ops {
+	ssize_t	(*show)(struct kobject *, struct attribute *,char *);
+	ssize_t	(*store)(struct kobject *,struct attribute *,const char *, size_t);
+};
+
+struct sysfs_dirent {
+	atomic_t		s_count;
+	struct list_head	s_sibling;
+	struct list_head	s_children;
+	void 			* s_element;
+	int			s_type;
+	umode_t			s_mode;
+	struct dentry		* s_dentry;
+};
+
+#define SYSFS_ROOT		0x0001
+#define SYSFS_DIR		0x0002
+#define SYSFS_KOBJ_ATTR 	0x0004
+#define SYSFS_KOBJ_BIN_ATTR	0x0008
+#define SYSFS_KOBJ_LINK 	0x0020
+#define SYSFS_NOT_PINNED	(SYSFS_KOBJ_ATTR | SYSFS_KOBJ_BIN_ATTR | SYSFS_KOBJ_LINK)
+
+#ifdef CONFIG_SYSFS
+
+extern int
+sysfs_create_dir(struct kobject *);
+
+extern void
+sysfs_remove_dir(struct kobject *);
+
+extern int
+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 int sysfs_rename_dir(struct kobject * k, const char *new_name)
+{
+	return 0;
+}
+
+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_ */