2 * sysfs.h - definitions for the device driver filesystem
4 * Copyright (c) 2001,2002 Patrick Mochel
6 * Please see Documentation/filesystems/sysfs.txt for more information.
17 struct module * owner;
21 struct attribute_group {
23 struct attribute ** attrs;
29 * Use these macros to make defining attributes easier. See include/linux/device.h
33 #define __ATTR(_name,_mode,_show,_store) { \
34 .attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE }, \
39 #define __ATTR_RO(_name) { \
40 .attr = { .name = __stringify(_name), .mode = 0444, .owner = THIS_MODULE }, \
41 .show = _name##_show, \
44 #define __ATTR_NULL { .attr = { .name = NULL } }
46 #define attr_name(_attr) (_attr).attr.name
48 struct bin_attribute {
49 struct attribute attr;
51 ssize_t (*read)(struct kobject *, char *, loff_t, size_t);
52 ssize_t (*write)(struct kobject *, char *, loff_t, size_t);
56 ssize_t (*show)(struct kobject *, struct attribute *,char *);
57 ssize_t (*store)(struct kobject *,struct attribute *,const char *, size_t);
63 sysfs_create_dir(struct kobject *);
66 sysfs_remove_dir(struct kobject *);
69 sysfs_rename_dir(struct kobject *, const char *new_name);
72 sysfs_create_file(struct kobject *, const struct attribute *);
75 sysfs_update_file(struct kobject *, const struct attribute *);
78 sysfs_remove_file(struct kobject *, const struct attribute *);
81 sysfs_create_link(struct kobject * kobj, struct kobject * target, char * name);
84 sysfs_remove_link(struct kobject *, char * name);
86 int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr);
87 int sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr);
89 int sysfs_create_group(struct kobject *, const struct attribute_group *);
90 void sysfs_remove_group(struct kobject *, const struct attribute_group *);
92 #else /* CONFIG_SYSFS */
94 static inline int sysfs_create_dir(struct kobject * k)
99 static inline void sysfs_remove_dir(struct kobject * k)
104 static inline int sysfs_rename_dir(struct kobject * k, const char *new_name)
109 static inline int sysfs_create_file(struct kobject * k, const struct attribute * a)
114 static inline int sysfs_update_file(struct kobject * k, const struct attribute * a)
119 static inline void sysfs_remove_file(struct kobject * k, const struct attribute * a)
124 static inline int sysfs_create_link(struct kobject * k, struct kobject * t, char * n)
129 static inline void sysfs_remove_link(struct kobject * k, char * name)
135 static inline int sysfs_create_bin_file(struct kobject * k, struct bin_attribute * a)
140 static inline int sysfs_remove_bin_file(struct kobject * k, struct bin_attribute * a)
145 static inline int sysfs_create_group(struct kobject * k, const struct attribute_group *g)
150 static inline void sysfs_remove_group(struct kobject * k, const struct attribute_group * g)
155 #endif /* CONFIG_SYSFS */
157 #endif /* _SYSFS_H_ */