[PATCH 8/8] sys: Add files to Doxygen group

[Sebastian Huber]

Canonicalize brief descriptions.

Update #3707.
---
 cpukit/doxygen/top-level-groups.h | 8 ++++++++
 cpukit/include/sys/endian.h       | 9 +++++++++
 cpukit/include/sys/priority.h     | 8 ++++++++
 cpukit/include/sys/statvfs.h      | 7 ++++---
 4 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/cpukit/doxygen/top-level-groups.h b/cpukit/doxygen/top-level-groups.h
index fd32db347a..9d34b3e3dd 100644
--- a/cpukit/doxygen/top-level-groups.h
+++ b/cpukit/doxygen/top-level-groups.h
@@ -40,6 +40,14 @@
  *   RTEMS.
  */
 
+/**
+ * @defgroup RTEMSAPISystemLibrary System Library
+ *
+ * @ingroup RTEMSAPI
+ *
+ * @brief This group contains the system library APIs of RTEMS.
+ */
+
 /**
  * @defgroup RTEMSDeviceDrivers Device Drivers
  *
diff --git a/cpukit/include/sys/endian.h b/cpukit/include/sys/endian.h
index 0849a6a90b..cdd6201736 100644
--- a/cpukit/include/sys/endian.h
+++ b/cpukit/include/sys/endian.h
@@ -1,3 +1,12 @@
+/**
+ * @file
+ *
+ * @ingroup RTEMSAPISystemLibrary
+ *
+ * @brief This header file provides interfaces of the system endianness
+ *   support.
+ */
+
 /*-
  * Copyright (c) 2002 Thomas Moestl <tmm at FreeBSD.org>
  * All rights reserved.
diff --git a/cpukit/include/sys/priority.h b/cpukit/include/sys/priority.h
index 855edb63c2..37d0d938dc 100644
--- a/cpukit/include/sys/priority.h
+++ b/cpukit/include/sys/priority.h
@@ -1,3 +1,11 @@
+/**
+ * @file
+ *
+ * @ingroup RTEMSAPISystemLibrary
+ *
+ * @brief This header file provides interfaces of the process priority support.
+ */
+
 /*-
  * SPDX-License-Identifier: BSD-4-Clause
  *
diff --git a/cpukit/include/sys/statvfs.h b/cpukit/include/sys/statvfs.h
index 52d8e9d3fa..655f9a596c 100644
--- a/cpukit/include/sys/statvfs.h
+++ b/cpukit/include/sys/statvfs.h
@@ -3,10 +3,11 @@
 /**
  * @file
  *
- * @brief Interface to the statvfs() Set of API Methods
+ * @ingroup RTEMSAPISystemLibrary
  *
- * This include file defines the interface to the statvfs() set of
- * API methods. The statvfs as defined by the SUS:
+ * @brief This header file provides the statvfs() and fstatvfs() interfaces.
+ *
+ * The statvfs() is defined by the SUS:
  *
  * - http://www.opengroup.org/onlinepubs/009695399/basedefs/sys/statvfs.h.html
  */
-- 
2.35.3