1 files changed, 15 insertions, 0 deletions

diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index ddad16148bd6..99382c0df17e 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -57,6 +57,21 @@ do {							\
 #define sysfs_attr_init(attr) do {} while (0)
 #endif
 
+/**
+ * struct attribute_group - data structure used to declare an attribute group.
+ * @name:       Optional: Attribute group name
+ *              If specified, the attribute group will be created in
+ *              a new subdirectory with this name.
+ * @is_visible: Optional: Function to return permissions associated with an
+ *              attribute of the group. Will be called repeatedly for each
+ *              attribute in the group. Only read/write permissions as well as
+ *              SYSFS_PREALLOC are accepted. Must return 0 if an attribute is
+ *              not visible. The returned value will replace static permissions
+ *              defined in struct attribute or struct bin_attribute.
+ * @attrs:      Pointer to NULL terminated list of attributes.
+ * @bin_attrs:  Pointer to NULL terminated list of binary attributes.
+ *              Either attrs or bin_attrs or both must be provided.
+ */
 struct attribute_group {
         const char              *name;
         umode_t                 (*is_visible)(struct kobject *,