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-rw-r--r--include/linux/sysfs.h64
1 files changed, 55 insertions, 9 deletions
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index e2cee22f578a..9e8a9b555ad6 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -17,10 +17,12 @@
#include <linux/list.h>
#include <linux/lockdep.h>
#include <linux/kobject_ns.h>
+#include <linux/stat.h>
#include <linux/atomic.h>
struct kobject;
struct module;
+struct bin_attribute;
enum kobj_ns_type;
struct attribute {
@@ -59,26 +61,28 @@ struct attribute_group {
umode_t (*is_visible)(struct kobject *,
struct attribute *, int);
struct attribute **attrs;
+ struct bin_attribute **bin_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 }, \
- .show = _show, \
- .store = _store, \
+#define __ATTR(_name,_mode,_show,_store) { \
+ .attr = {.name = __stringify(_name), .mode = _mode }, \
+ .show = _show, \
+ .store = _store, \
}
-#define __ATTR_RO(_name) { \
- .attr = { .name = __stringify(_name), .mode = 0444 }, \
- .show = _name##_show, \
+#define __ATTR_RO(_name) { \
+ .attr = { .name = __stringify(_name), .mode = S_IRUGO }, \
+ .show = _name##_show, \
}
+#define __ATTR_RW(_name) __ATTR(_name, (S_IWUSR | S_IRUGO), \
+ _name##_show, _name##_store)
+
#define __ATTR_NULL { .attr = { .name = NULL } }
#ifdef CONFIG_DEBUG_LOCK_ALLOC
@@ -92,6 +96,18 @@ struct attribute_group {
#define __ATTR_IGNORE_LOCKDEP __ATTR
#endif
+#define __ATTRIBUTE_GROUPS(_name) \
+static const struct attribute_group *_name##_groups[] = { \
+ &_name##_group, \
+ NULL, \
+}
+
+#define ATTRIBUTE_GROUPS(_name) \
+static const struct attribute_group _name##_group = { \
+ .attrs = _name##_attrs, \
+}; \
+__ATTRIBUTE_GROUPS(_name)
+
#define attr_name(_attr) (_attr).attr.name
struct file;
@@ -121,6 +137,36 @@ struct bin_attribute {
*/
#define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&(bin_attr)->attr)
+/* macros to create static binary attributes easier */
+#define __BIN_ATTR(_name, _mode, _read, _write, _size) { \
+ .attr = { .name = __stringify(_name), .mode = _mode }, \
+ .read = _read, \
+ .write = _write, \
+ .size = _size, \
+}
+
+#define __BIN_ATTR_RO(_name, _size) { \
+ .attr = { .name = __stringify(_name), .mode = S_IRUGO }, \
+ .read = _name##_read, \
+ .size = _size, \
+}
+
+#define __BIN_ATTR_RW(_name, _size) __BIN_ATTR(_name, \
+ (S_IWUSR | S_IRUGO), _name##_read, \
+ _name##_write)
+
+#define __BIN_ATTR_NULL __ATTR_NULL
+
+#define BIN_ATTR(_name, _mode, _read, _write, _size) \
+struct bin_attribute bin_attr_##_name = __BIN_ATTR(_name, _mode, _read, \
+ _write, _size)
+
+#define BIN_ATTR_RO(_name, _size) \
+struct bin_attribute bin_attr_##_name = __BIN_ATTR_RO(_name, _size)
+
+#define BIN_ATTR_RW(_name, _size) \
+struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size)
+
struct sysfs_ops {
ssize_t (*show)(struct kobject *, struct attribute *,char *);
ssize_t (*store)(struct kobject *,struct attribute *,const char *, size_t);