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-rw-r--r--Documentation/filesystems/configfs/configfs.txt17
1 files changed, 14 insertions, 3 deletions
diff --git a/Documentation/filesystems/configfs/configfs.txt b/Documentation/filesystems/configfs/configfs.txt
index 44c97e6accb2..fabcb0e00f25 100644
--- a/Documentation/filesystems/configfs/configfs.txt
+++ b/Documentation/filesystems/configfs/configfs.txt
@@ -311,9 +311,20 @@ the subsystem must be ready for it.
311[An Example] 311[An Example]
312 312
313The best example of these basic concepts is the simple_children 313The best example of these basic concepts is the simple_children
314subsystem/group and the simple_child item in configfs_example.c It 314subsystem/group and the simple_child item in configfs_example_explicit.c
315shows a trivial object displaying and storing an attribute, and a simple 315and configfs_example_macros.c. It shows a trivial object displaying and
316group creating and destroying these children. 316storing an attribute, and a simple group creating and destroying these
317children.
318
319The only difference between configfs_example_explicit.c and
320configfs_example_macros.c is how the attributes of the childless item
321are defined. The childless item has extended attributes, each with
322their own show()/store() operation. This follows a convention commonly
323used in sysfs. configfs_example_explicit.c creates these attributes
324by explicitly defining the structures involved. Conversely
325configfs_example_macros.c uses some convenience macros from configfs.h
326to define the attributes. These macros are similar to their sysfs
327counterparts.
317 328
318[Hierarchy Navigation and the Subsystem Mutex] 329[Hierarchy Navigation and the Subsystem Mutex]
319 330