From: Guenter Roeck <li...@roeck-us.net>
Document variables defined in struct attribute_group to ensure
correct usage.
Signed-off-by: Guenter Roeck <li...@roeck-us.net>
Signed-off-by: Vivien Didelot <vivien.dide...@savoirfairelinux.com>
---
include/linux/sysfs.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index ddad161..99382c0 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 *,
--
2.3.2
--
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