Keep the textual reference to ch9.h as it was prior to commit
caa93d9bd2d7 ("usb: Fix up movement of USB core kerneldoc location").
As linux/usb/ch9.h does not contain comments anymore, explain
that drivers/usb/common/common.c includes such header and provides
declarations of a few utilities routines for manipulating the data types
from ch9.h. Also mention that drivers/usb/common/debug.c contains
some functions for creating debug output.
Fixes: caa93d9bd2d7 ("usb: Fix up movement of USB core kerneldoc location")
Reported-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Suggested-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Fabio Estevam <festevam@xxxxxxxxx>
---
Changes since v2:
- Refer to include/uapi/linux/usb/ch9.h initially (Alan)
Documentation/driver-api/usb/usb.rst | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/Documentation/driver-api/usb/usb.rst b/Documentation/driver-api/usb/usb.rst
index 543e70434da2..e97a46461884 100644
--- a/Documentation/driver-api/usb/usb.rst
+++ b/Documentation/driver-api/usb/usb.rst
@@ -109,16 +109,19 @@ well as to make sure they aren't relying on some HCD-specific behavior.
USB-Standard Types
==================
-In ``drivers/usb/common/common.c`` and ``drivers/usb/common/debug.c`` you
-will find the USB data types defined in chapter 9 of the USB specification.
-These data types are used throughout USB, and in APIs including this host
-side API, gadget APIs, usb character devices and debugfs interfaces.
+In ``include/uapi/linux/usb/ch9.h`` you will find the USB data types defined
+in chapter 9 of the USB specification. These data types are used throughout
+USB, and in APIs including this host side API, gadget APIs, usb character
+devices and debugfs interfaces. That file is itself included by
+``<linux/usb/ch9.h>``, which also contains declarations of a few utility
+routines for manipulating these data types; the implementations are
+in ``drivers/usb/common/common.c``.
.. kernel-doc:: drivers/usb/common/common.c
:export:
-.. kernel-doc:: drivers/usb/common/debug.c
- :export:
+In addition, some functions useful for creating debugging output are
+defined in ``drivers/usb/common/debug.c``.
Host-Side Data Types and Macros
===============================
--
2.25.1
