]>
git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - include/linux/sysfs.h
2 * sysfs.h - definitions for the device driver filesystem
4 * Copyright (c) 2001,2002 Patrick Mochel
5 * Copyright (c) 2004 Silicon Graphics, Inc.
7 * Please see Documentation/filesystems/sysfs.txt for more information.
13 #include <asm/atomic.h>
20 struct module
* owner
;
24 struct attribute_group
{
26 struct attribute
** attrs
;
32 * Use these macros to make defining attributes easier. See include/linux/device.h
36 #define __ATTR(_name,_mode,_show,_store) { \
37 .attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE }, \
42 #define __ATTR_RO(_name) { \
43 .attr = { .name = __stringify(_name), .mode = 0444, .owner = THIS_MODULE }, \
44 .show = _name##_show, \
47 #define __ATTR_NULL { .attr = { .name = NULL } }
49 #define attr_name(_attr) (_attr).attr.name
51 struct vm_area_struct
;
53 struct bin_attribute
{
54 struct attribute attr
;
57 ssize_t (*read
)(struct kobject
*, char *, loff_t
, size_t);
58 ssize_t (*write
)(struct kobject
*, char *, loff_t
, size_t);
59 int (*mmap
)(struct kobject
*, struct bin_attribute
*attr
,
60 struct vm_area_struct
*vma
);
64 ssize_t (*show
)(struct kobject
*, struct attribute
*,char *);
65 ssize_t (*store
)(struct kobject
*,struct attribute
*,const char *, size_t);
70 struct list_head s_sibling
;
71 struct list_head s_children
;
75 struct dentry
* s_dentry
;
76 struct iattr
* s_iattr
;
79 #define SYSFS_ROOT 0x0001
80 #define SYSFS_DIR 0x0002
81 #define SYSFS_KOBJ_ATTR 0x0004
82 #define SYSFS_KOBJ_BIN_ATTR 0x0008
83 #define SYSFS_KOBJ_LINK 0x0020
84 #define SYSFS_NOT_PINNED (SYSFS_KOBJ_ATTR | SYSFS_KOBJ_BIN_ATTR | SYSFS_KOBJ_LINK)
89 sysfs_create_dir(struct kobject
*);
92 sysfs_remove_dir(struct kobject
*);
95 sysfs_rename_dir(struct kobject
*, const char *new_name
);
98 sysfs_create_file(struct kobject
*, const struct attribute
*);
101 sysfs_update_file(struct kobject
*, const struct attribute
*);
104 sysfs_chmod_file(struct kobject
*kobj
, struct attribute
*attr
, mode_t mode
);
107 sysfs_remove_file(struct kobject
*, const struct attribute
*);
110 sysfs_create_link(struct kobject
* kobj
, struct kobject
* target
, const char * name
);
113 sysfs_remove_link(struct kobject
*, const char * name
);
115 int sysfs_create_bin_file(struct kobject
* kobj
, struct bin_attribute
* attr
);
116 int sysfs_remove_bin_file(struct kobject
* kobj
, struct bin_attribute
* attr
);
118 int sysfs_create_group(struct kobject
*, const struct attribute_group
*);
119 void sysfs_remove_group(struct kobject
*, const struct attribute_group
*);
121 #else /* CONFIG_SYSFS */
123 static inline int sysfs_create_dir(struct kobject
* k
)
128 static inline void sysfs_remove_dir(struct kobject
* k
)
133 static inline int sysfs_rename_dir(struct kobject
* k
, const char *new_name
)
138 static inline int sysfs_create_file(struct kobject
* k
, const struct attribute
* a
)
143 static inline int sysfs_update_file(struct kobject
* k
, const struct attribute
* a
)
147 static inline int sysfs_chmod_file(struct kobject
*kobj
, struct attribute
*attr
, mode_t mode
)
152 static inline void sysfs_remove_file(struct kobject
* k
, const struct attribute
* a
)
157 static inline int sysfs_create_link(struct kobject
* k
, struct kobject
* t
, const char * n
)
162 static inline void sysfs_remove_link(struct kobject
* k
, const char * name
)
168 static inline int sysfs_create_bin_file(struct kobject
* k
, struct bin_attribute
* a
)
173 static inline int sysfs_remove_bin_file(struct kobject
* k
, struct bin_attribute
* a
)
178 static inline int sysfs_create_group(struct kobject
* k
, const struct attribute_group
*g
)
183 static inline void sysfs_remove_group(struct kobject
* k
, const struct attribute_group
* g
)
188 #endif /* CONFIG_SYSFS */
190 #endif /* _SYSFS_H_ */