* 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>
+
+#define SYSFS_SUPER_MAGIC 0x62656572
+
struct kobject;
struct module;
};
+
+/**
+ * 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 (*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
extern void
sysfs_remove_dir(struct kobject *);
-extern void
+extern int
sysfs_rename_dir(struct kobject *, const char *new_name);
extern int
;
}
-static inline void sysfs_rename_dir(struct kobject * k, const char *new_name)
+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)