libcsupport: Doxygen enhancement GCI task #4

http://www.google-melange.com/gci/task/view/google/gci2012/8009205

26 files changed, 274 insertions, 116 deletions

diff --git a/cpukit/libcsupport/include/rtems/assoc.h b/cpukit/libcsupport/include/rtems/assoc.h
index 9264560870..496ddb42cd 100644
--- a/cpukit/libcsupport/include/rtems/assoc.h
+++ b/cpukit/libcsupport/include/rtems/assoc.h
@@ -115,6 +115,9 @@ uint32_t     rtems_assoc_local_by_remote_bitfield(
   uint32_t
 );
 
+/**
+ *  @brief RTEMS Associate Pointer by Local
+ */
 const rtems_assoc_t *rtems_assoc_ptr_by_local(
   const rtems_assoc_t *ap,
   uint32_t             local_value
diff --git a/cpukit/libcsupport/include/rtems/error.h b/cpukit/libcsupport/include/rtems/error.h
index ab23ab0ced..056fb8f9c0 100644
--- a/cpukit/libcsupport/include/rtems/error.h
+++ b/cpukit/libcsupport/include/rtems/error.h
@@ -2,6 +2,40 @@
  * @file rtems/error.h
  *
  * Defines and externs for rtems error reporting
+ * 
+ * Currently just used by RTEMS monitor.
+ * 
+ * These routines provide general purpose error reporting.
+ * rtems_error reports an error to stderr and allows use of
+ * printf style formatting.  A newline is appended to all messages.
+ *
+ * error_flag can be specified as any of the following:
+ *
+ *  RTEMS_ERROR_ERRNO       -- include errno text in output
+ *  RTEMS_ERROR_PANIC       -- halts local system after output
+ *  RTEMS_ERROR_ABORT       -- abort after output
+ *
+ * It can also include a rtems_status value which can be OR'd
+ * with the above flags. *
+ *
+ * EXAMPLE
+ *  #include <rtems.h>
+ *  #include <rtems/error.h>
+ *  rtems_error(0, "stray interrupt %d", intr);
+ *
+ * EXAMPLE
+ *        if ((status = rtems_task_create(...)) != RTEMS_SUCCCESSFUL)
+ *        {
+ *            rtems_error(status | RTEMS_ERROR_ABORT,
+ *                        "could not create task");
+ *        }
+ *
+ * EXAMPLE
+ *        if ((fd = open(pathname, O_RDNLY)) < 0)
+ *        {
+ *            rtems_error(RTEMS_ERROR_ERRNO, "open of '%s' failed", pathname);
+ *            goto failed;
+ *        }
  */
 
 
@@ -15,6 +49,15 @@
 extern "C" {
 #endif
 
+/**
+ *  @defgroup ErrorPanicSupport Error And Panic Support
+ *
+ *  @ingroup libcsupport
+ * 
+ *  @brief Defines and externs for rtems error reporting
+ * 
+ */
+
 typedef Internal_errors_t rtems_error_code_t;
 
 /*
@@ -36,11 +79,29 @@ typedef Internal_errors_t rtems_error_code_t;
   (RTEMS_ERROR_ERRNO | RTEMS_ERROR_ABORT | RTEMS_ERROR_PANIC) /* all */
 
 const char *rtems_status_text(rtems_status_code sc);
+
+/**
+ *  @brief Report an Error
+ * 
+ *  @param[in] error_code can be specified as any of the following:
+ *  RTEMS_ERROR_ERRNO       -- include errno text in output
+ *  RTEMS_ERROR_PANIC       -- halts local system after output
+ *  RTEMS_ERROR_ABORT       -- abort after output
+ * 
+ *  @param[in] printf_format is a normal printf(3) format string, 
+ *  with its concommitant arguments
+ *
+ *  @return the number of characters written.
+ */
 int   rtems_error(
   rtems_error_code_t error_code,
   const char *printf_format,
   ...
 );
+
+/**
+ * rtems_panic is shorthand for rtems_error(RTEMS_ERROR_PANIC, ...)
+ */
 void rtems_panic(
   const char *printf_format,
   ...
diff --git a/cpukit/libcsupport/include/rtems/libio_.h b/cpukit/libcsupport/include/rtems/libio_.h
index d6d7ddfca7..19b8661de8 100644
--- a/cpukit/libcsupport/include/rtems/libio_.h
+++ b/cpukit/libcsupport/include/rtems/libio_.h
@@ -194,15 +194,15 @@ void rtems_filesystem_location_clone(
 );
 
 /**
- * @brief Returns the type of a node.
+ *  @brief Returns the Type of a Node
  *
- * This function obtains and releases the file system instance lock.
+ *  This function obtains and releases the file system instance lock.
  *
- * @param[in] loc The location of the node.
+ *  @param[in] loc The location of the node.
  *
- * @return The node type.
+ *  @return The node type.
  *
- * @see rtems_filesystem_instance_lock().
+ *  @see rtems_filesystem_instance_lock().
  */
 rtems_filesystem_node_types_t rtems_filesystem_node_type(
   const rtems_filesystem_location_info_t *loc
@@ -551,6 +551,9 @@ int rtems_filesystem_mknod(
 
 int rtems_filesystem_chdir( rtems_filesystem_location_info_t *loc );
 
+/**
+ *  @brief Change Owner and Group of a File
+ */
 int rtems_filesystem_chown(
   const char *path,
   uid_t owner,
diff --git a/cpukit/libcsupport/include/rtems/malloc.h b/cpukit/libcsupport/include/rtems/malloc.h
index 6b0dfa0e65..fdb57f3bd0 100644
--- a/cpukit/libcsupport/include/rtems/malloc.h
+++ b/cpukit/libcsupport/include/rtems/malloc.h
@@ -88,6 +88,9 @@ typedef void *(*rtems_heap_extend_handler)(
   size_t alloc_size
 );
 
+/**
+ *  @brief RTEMS Extend Heap via Sbrk
+ */
 void *rtems_heap_extend_via_sbrk(
   Heap_Control *heap,
   size_t alloc_size
diff --git a/cpukit/libcsupport/include/rtems/termiostypes.h b/cpukit/libcsupport/include/rtems/termiostypes.h
index 7f2a3eae84..89a997a09e 100644
--- a/cpukit/libcsupport/include/rtems/termiostypes.h
+++ b/cpukit/libcsupport/include/rtems/termiostypes.h
@@ -191,6 +191,9 @@ extern int   rtems_termios_nlinesw;
 /* baudrate xxx integer type */
 typedef uint32_t rtems_termios_baud_t;
 
+/**
+ *  @brief RTEMS Termios Baud Table
+ */
 extern const rtems_assoc_t rtems_termios_baud_table [];
 
 /**
@@ -203,13 +206,12 @@ extern const rtems_assoc_t rtems_termios_baud_table [];
 tcflag_t rtems_termios_number_to_baud(rtems_termios_baud_t baud);
 
 /**
- * @brief Converts the baud part of the Termios control flags @a c_cflag to an
- * integral baud value.
+ *  @brief Convert Baud Part of Termios control flags to an integral Baud Value
  *
- * There is no need to mask the @a c_cflag with @c CBAUD.
+ *  There is no need to mask the @a c_cflag with @c CBAUD.
  *
- * @retval 0 Invalid baud value or a baud value of @c B0.
- * @retval other Integral baud value.
+ *  @retval 0 Invalid baud value or a baud value of @c B0.
+ *  @retval other Integral baud value.
  */
 rtems_termios_baud_t rtems_termios_baud_to_number(tcflag_t c_cflag);
 
diff --git a/cpukit/libcsupport/include/sys/termios.h b/cpukit/libcsupport/include/sys/termios.h
index b65f81dc08..f51cd3c0f3 100644
--- a/cpukit/libcsupport/include/sys/termios.h
+++ b/cpukit/libcsupport/include/sys/termios.h
@@ -198,11 +198,21 @@ int	tcdrain(int);
  */
 int	tcflow(int, int);
 int	tcflush(int, int);
+
+/**
+ *  @brief Get State
+ *  POSIX 1003.1b 7.2.1 - Get and Set State
+ */
 int	tcgetattr(int, struct termios *);
 int	tcsetattr(int, int, struct termios *);
 int	tcdrain(int);
 pid_t	tcgetprgrp(int);
 int	tcsetprgrp(int, pid_t);
+
+/**
+ *  @brief Line Control Functions
+ *  POSIX 1003.1b 7.2.2 - Line Control Functions
+ */
 int	tcsendbreak(int, int);
 
 /**
diff --git a/cpukit/libcsupport/src/assocptrbylocal.c b/cpukit/libcsupport/src/assocptrbylocal.c
index 8cba79ce52..a0e7c3ce5b 100644
--- a/cpukit/libcsupport/src/assocptrbylocal.c
+++ b/cpukit/libcsupport/src/assocptrbylocal.c
@@ -1,6 +1,8 @@
-/*
- * assoc.c
- *      rtems assoc routines
+/**
+ *  @file
+ *
+ *  @brief RTEMS Associate Pointer by Local
+ *  @ingroup Associativity
  */
 
 #if HAVE_CONFIG_H
diff --git a/cpukit/libcsupport/src/chmod.c b/cpukit/libcsupport/src/chmod.c
index 47de601b98..8b91b60eae 100644
--- a/cpukit/libcsupport/src/chmod.c
+++ b/cpukit/libcsupport/src/chmod.c
@@ -1,6 +1,11 @@
-/*
- *  chmod() - POSIX 1003.1b 5.6.4 - Change File Modes
+/**
+ *  @file
  *
+ *  @brief Change File Modes
+ *  @ingroup libcsupport
+ */
+
+/*
  *  COPYRIGHT (c) 1989-1999.
  *  On-Line Applications Research Corporation (OAR).
  *
@@ -17,6 +22,9 @@
 
 #include <rtems/libio_.h>
 
+/**
+ *  POSIX 1003.1b 5.6.4 - Change File Modes
+ */
 int chmod( const char *path, mode_t mode )
 {
   int rv = 0;
diff --git a/cpukit/libcsupport/src/chown.c b/cpukit/libcsupport/src/chown.c
index 7cc03a2a07..434fc2b1a2 100644
--- a/cpukit/libcsupport/src/chown.c
+++ b/cpukit/libcsupport/src/chown.c
@@ -1,6 +1,11 @@
-/*
- *  chown() - POSIX 1003.1b 5.6.5 - Change Owner and Group of a File
+/**
+ *  @file
  *
+ *  @brief Change Owner and Group of a File
+ *  @ingroup libcsupport
+ */
+
+/*
  *  COPYRIGHT (c) 1989-1999.
  *  On-Line Applications Research Corporation (OAR).
  *
@@ -41,6 +46,9 @@ int rtems_filesystem_chown(
   return rv;
 }
 
+/**
+ *  POSIX 1003.1b 5.6.5 - Change Owner and Group of a File
+ */
 int chown( const char *path, uid_t owner, gid_t group )
 {
   return rtems_filesystem_chown( path, owner, group, RTEMS_FS_FOLLOW_LINK );
diff --git a/cpukit/libcsupport/src/error.c b/cpukit/libcsupport/src/error.c
index f8d2e40255..a77dfbbb34 100644
--- a/cpukit/libcsupport/src/error.c
+++ b/cpukit/libcsupport/src/error.c
@@ -1,46 +1,14 @@
-/*
- *  report errors and panics to RTEMS' stderr.
- *  Currently just used by RTEMS monitor.
+/**
+ *  @file
+ *
+ *  @brief Error and Panic Report Support
+ *  @ingroup ErrorPanicSupport
  */
 
 #if HAVE_CONFIG_H
 #include "config.h"
 #endif
 
-/*
- * These routines provide general purpose error reporting.
- * rtems_error reports an error to stderr and allows use of
- * printf style formatting.  A newline is appended to all messages.
- *
- * error_flag can be specified as any of the following:
- *
- *  RTEMS_ERROR_ERRNO       -- include errno text in output
- *  RTEMS_ERROR_PANIC       -- halts local system after output
- *  RTEMS_ERROR_ABORT       -- abort after output
- *
- * It can also include a rtems_status value which can be OR'd
- * with the above flags. *
- *
- * EXAMPLE
- *  #include <rtems.h>
- *  #include <rtems/error.h>
- *  rtems_error(0, "stray interrupt %d", intr);
- *
- * EXAMPLE
- *        if ((status = rtems_task_create(...)) != RTEMS_SUCCCESSFUL)
- *        {
- *            rtems_error(status | RTEMS_ERROR_ABORT,
- *                        "could not create task");
- *        }
- *
- * EXAMPLE
- *        if ((fd = open(pathname, O_RDNLY)) < 0)
- *        {
- *            rtems_error(RTEMS_ERROR_ERRNO, "open of '%s' failed", pathname);
- *            goto failed;
- *        }
- */
-
 /* This is always defined on RTEMS Scheduler Simulator and thus
  * we get a redefined warning if this is not present.
  */
@@ -153,15 +121,6 @@ static int rtems_verror(
   return chars_written;
 }
 
-
-/*
- * Report an error.
- * error_flag is as above; printf_format is a normal
- * printf(3) format string, with its concommitant arguments.
- *
- * Returns the number of characters written.
- */
-
 int rtems_error(
   rtems_error_code_t error_flag,
   const char *printf_format,
@@ -187,10 +146,6 @@ int rtems_error(
   return chars_written;
 }
 
-/*
- * rtems_panic is shorthand for rtems_error(RTEMS_ERROR_PANIC, ...)
- */
-
 void rtems_panic(
   const char *printf_format,
   ...
diff --git a/cpukit/libcsupport/src/flockfile.c b/cpukit/libcsupport/src/flockfile.c
index 5fc6e25dbf..b4c28d8ce5 100644
--- a/cpukit/libcsupport/src/flockfile.c
+++ b/cpukit/libcsupport/src/flockfile.c
@@ -1,3 +1,9 @@
+/**
+ *  @file
+ *
+ *  @brief Lock File for Stdio
+ *  @ingroup SET
+ */
 /*
  * Copyright (c) 2009 by
  * Ralf Corsépius, Ulm, Germany. All rights reserved.
@@ -14,7 +20,9 @@
 
 #include <stdio.h>
 
-/* This is a non-functional stub */
+/**
+ *  This is a non-functional stub 
+ */
 void flockfile(FILE* file __attribute__((unused)))
 {
 }
diff --git a/cpukit/libcsupport/src/getdents.c b/cpukit/libcsupport/src/getdents.c
index 4f68240512..9e26a3cc2d 100644
--- a/cpukit/libcsupport/src/getdents.c
+++ b/cpukit/libcsupport/src/getdents.c
@@ -1,12 +1,11 @@
-/*
- *  getdents() - Get Directory Entries
- *
- *  SVR4 and SVID extension required by Newlib readdir() family.
- *
- *  This routine will dd_len / (sizeof dirent) directory entries relative to
- *  the current directory position index. These entries will be placed in
- *  character array pointed to by -dd_buf-
+/**
+ *  @file
  *
+ *  @brief Get Directory Entries
+ *  @ingroup libcsupport
+ */
+
+/*
  *  COPYRIGHT (c) 1989-1999.
  *  On-Line Applications Research Corporation (OAR).
  *
@@ -24,6 +23,13 @@
 #include <rtems/libio_.h>
 #include <rtems/seterr.h>
 
+/**
+ *  SVR4 and SVID extension required by Newlib readdir() family.
+ *
+ *  This routine will dd_len / (sizeof dirent) directory entries relative to
+ *  the current directory position index. These entries will be placed in
+ *  character array pointed to by -dd_buf-
+ */
 int getdents(
   int   dd_fd,
   char *dd_buf,
diff --git a/cpukit/libcsupport/src/getpid.c b/cpukit/libcsupport/src/getpid.c
index a46fbb59a9..27825e50b5 100644
--- a/cpukit/libcsupport/src/getpid.c
+++ b/cpukit/libcsupport/src/getpid.c
@@ -1,3 +1,10 @@
+/**
+ *  @file
+ *
+ *  @brief Process and Parent Process IDs
+ *  @ingroup libcsupport
+ */
+
 #if HAVE_CONFIG_H
 #include "config.h"
 #endif
@@ -8,25 +15,21 @@
 #include <rtems/score/object.h>
 #include <rtems/seterr.h>
 
-/*
+/**
  *  4.1.1 Get Process and Parent Process IDs, P1003.1b-1993, p. 83
  */
-
 pid_t getpid( void )
 {
   return _Objects_Local_node;
 }
 
-/*
- *  _getpid_r
- *
- *  This is the Newlib dependent reentrant version of getpid().
- */
-
 #if defined(RTEMS_NEWLIB) && !defined(HAVE__GETPID_R)
 
 #include <reent.h>
 
+/**
+ *  This is the Newlib dependent reentrant version of getpid().
+ */
 pid_t _getpid_r(
   struct _reent *ptr __attribute__((unused))
 )
diff --git a/cpukit/libcsupport/src/getpwent.c b/cpukit/libcsupport/src/getpwent.c
index 75181fd8f1..618f318885 100644
--- a/cpukit/libcsupport/src/getpwent.c
+++ b/cpukit/libcsupport/src/getpwent.c
@@ -1,6 +1,11 @@
-/*
- *  POSIX 1003.1b - 9.2.2 - User Database Access Routines
+/**
+ *  @file
  *
+ *  @brief User Database Access Routines
+ *  @ingroup libcsupport
+ */
+
+/*
  *  The license and distribution terms for this file may be
  *  found in the file LICENSE in this distribution or at
  *  http://www.rtems.com/license/LICENSE.
@@ -24,6 +29,10 @@
 #include <rtems/libio_.h>
 #include <rtems/seterr.h>
 
+/**
+ *  POSIX 1003.1b - 9.2.2 - User Database Access Routines
+ */
+
 /*
  * Static, thread-unsafe, buffers
  */
@@ -34,8 +43,8 @@ static FILE *group_fp;
 static char grbuf[200];
 static struct group grent;
 
-/*
- * Initialize useable but dummy databases
+/**
+ *  Initialize useable but dummy databases
  */
 void init_etc_passwd_group(void)
 {
@@ -74,8 +83,8 @@ void init_etc_passwd_group(void)
   }
 }
 
-/*
- * Extract a string value from the database
+/**
+ *  Extract a string value from the database
  */
 static int
 scanString(FILE *fp, char **name, char **bufp, size_t *nleft, int nlFlag)
@@ -109,8 +118,8 @@ scanString(FILE *fp, char **name, char **bufp, size_t *nleft, int nlFlag)
   return 1;
 }
 
-/*
- * Extract an integer value from the database
+/**
+ *  Extract an integer value from the database
  */
 static int
 scanInt(FILE *fp, int *val)
@@ -279,8 +288,8 @@ void endpwent(void)
     fclose(passwd_fp);
 }
 
-/*
- * Extract a single group record from the database
+/**
+ *  Extract a single group record from the database
  */
 static int scangr(
   FILE *fp,
diff --git a/cpukit/libcsupport/src/mkdir.c b/cpukit/libcsupport/src/mkdir.c
index 7b823141b0..e1c4b7c001 100644
--- a/cpukit/libcsupport/src/mkdir.c
+++ b/cpukit/libcsupport/src/mkdir.c
@@ -1,6 +1,11 @@
-/*
- *  mkdir() - POSIX 1003.1b 5.4.1 - Make a Directory
+/**
+ *  @file
  *
+ *  @brief Make a Directory
+ *  @ingroup libcsupport
+ */
+
+/*
  *  COPYRIGHT (c) 1989-1999.
  *  On-Line Applications Research Corporation (OAR).
  *
@@ -19,6 +24,9 @@
 #include <errno.h>
 #include <stdlib.h>
 
+/**
+ *  POSIX 1003.1b 5.4.1 - Make a Directory
+ */
 int mkdir(
   const char *pathname,
   mode_t      mode
diff --git a/cpukit/libcsupport/src/printf_plugin.c b/cpukit/libcsupport/src/printf_plugin.c
index 87913277f9..5814f6e4c1 100644
--- a/cpukit/libcsupport/src/printf_plugin.c
+++ b/cpukit/libcsupport/src/printf_plugin.c
@@ -1,3 +1,10 @@
+/**
+ *  @file
+ *
+ *  @brief RTEMS Plugin Printf
+ *  @ingroup libcsupport
+ */
+
 /*
  * Copyright (c) 2012 embedded brains GmbH.  All rights reserved.
  *
diff --git a/cpukit/libcsupport/src/printk_plugin.c b/cpukit/libcsupport/src/printk_plugin.c
index 70fd19a6cc..12f9495248 100644
--- a/cpukit/libcsupport/src/printk_plugin.c
+++ b/cpukit/libcsupport/src/printk_plugin.c
@@ -1,3 +1,10 @@
+/**
+ *  @file
+ *
+ *  @brief Plugin Printk
+ *  @ingroup libcsupport
+ */
+
 /*
  *  COPYRIGHT (c) 1989-2007.
  *  On-Line Applications Research Corporation (OAR).
diff --git a/cpukit/libcsupport/src/read.c b/cpukit/libcsupport/src/read.c
index ee10166dc8..c1a0d085a3 100644
--- a/cpukit/libcsupport/src/read.c
+++ b/cpukit/libcsupport/src/read.c
@@ -1,6 +1,11 @@
-/*
- *  read() - POSIX 1003.1b 6.4.1 - Read From a File
+/**
+ *  @file
  *
+ *  @brief Read From a File
+ *  @ingroup libcsupport
+ */
+
+/*
  *  COPYRIGHT (c) 1989-2011.
  *  On-Line Applications Research Corporation (OAR).
  *
@@ -16,6 +21,9 @@
 #include <rtems/libio_.h>
 #include <rtems/seterr.h>
 
+/**
+ *  POSIX 1003.1b 6.4.1 - Read From a File
+ */
 ssize_t read(
   int         fd,
   void       *buffer,
@@ -37,16 +45,13 @@ ssize_t read(
   return (*iop->pathinfo.handlers->read_h)( iop, buffer, count );
 }
 
-/*
- *  _read_r
- *
- *  This is the Newlib dependent reentrant version of read().
- */
-
 #if defined(RTEMS_NEWLIB) && !defined(HAVE__READ_R)
 
 #include <reent.h>
 
+/**
+ *  This is the Newlib dependent reentrant version of read().
+ */
 ssize_t _read_r(
   struct _reent *ptr __attribute__((unused)),
   int            fd,
diff --git a/cpukit/libcsupport/src/rtems_heap_extend_via_sbrk.c b/cpukit/libcsupport/src/rtems_heap_extend_via_sbrk.c
index 831626b3d5..d27a3660a2 100644
--- a/cpukit/libcsupport/src/rtems_heap_extend_via_sbrk.c
+++ b/cpukit/libcsupport/src/rtems_heap_extend_via_sbrk.c
@@ -1,3 +1,10 @@
+/**
+ *  @file
+ *
+ *  @brief RTEMS Extend Heap via Sbrk
+ *  @ingroup MallocSupport
+ */
+
 /*
  * Copyright (c) 2012 embedded brains GmbH.  All rights reserved.
  *
diff --git a/cpukit/libcsupport/src/sup_fs_eval_path.c b/cpukit/libcsupport/src/sup_fs_eval_path.c
index f323dbc8f3..ca31e5eb69 100644
--- a/cpukit/libcsupport/src/sup_fs_eval_path.c
+++ b/cpukit/libcsupport/src/sup_fs_eval_path.c
@@ -1,3 +1,10 @@
+/**
+ *  @file
+ *
+ *  @brief RTEMS File Sysyem Path Eval Support
+ *  @ingroup LibIOInternal
+ */
+
 /*
  * Copyright (c) 2012 embedded brains GmbH.  All rights reserved.
  *
diff --git a/cpukit/libcsupport/src/sup_fs_node_type.c b/cpukit/libcsupport/src/sup_fs_node_type.c
index 0eb4221402..561075c6dc 100644
--- a/cpukit/libcsupport/src/sup_fs_node_type.c
+++ b/cpukit/libcsupport/src/sup_fs_node_type.c
@@ -1,3 +1,10 @@
+/**
+ *  @file
+ *
+ *  @brief Returns the Type of a Node
+ *  @ingroup LibIOInternal
+ */
+
 /*
  * Copyright (c) 2012 embedded brains GmbH.  All rights reserved.
  *
diff --git a/cpukit/libcsupport/src/tcgetattr.c b/cpukit/libcsupport/src/tcgetattr.c
index 00964d25c7..281e75663f 100644
--- a/cpukit/libcsupport/src/tcgetattr.c
+++ b/cpukit/libcsupport/src/tcgetattr.c
@@ -1,6 +1,11 @@
-/*
- *  tcgetattr() - POSIX 1003.1b 7.2.1 - Get and Set State
+/**
+ *  @file
  *
+ *  @brief Get State
+ *  @ingroup Termios
+ */
+
+/*
  *  COPYRIGHT (c) 1989-1999.
  *  On-Line Applications Research Corporation (OAR).
  *
diff --git a/cpukit/libcsupport/src/tcsendbreak.c b/cpukit/libcsupport/src/tcsendbreak.c
index 43ebcaafd9..11ac828205 100644
--- a/cpukit/libcsupport/src/tcsendbreak.c
+++ b/cpukit/libcsupport/src/tcsendbreak.c
@@ -1,6 +1,11 @@
-/*
- *  tcsendbreak() - POSIX 1003.1b 7.2.2 - Line Control Functions
+/**
+ *  @file
  *
+ *  @brief Line Control Functions
+ *  @ingroup Termios
+ */
+
+/*
  *  COPYRIGHT (c) 1989-1999.
  *  On-Line Applications Research Corporation (OAR).
  *
diff --git a/cpukit/libcsupport/src/termios_baud2num.c b/cpukit/libcsupport/src/termios_baud2num.c
index 1da2f37e9c..770e670111 100644
--- a/cpukit/libcsupport/src/termios_baud2num.c
+++ b/cpukit/libcsupport/src/termios_baud2num.c
@@ -1,3 +1,10 @@
+/**
+ *  @file
+ *
+ *  @brief Convert Baud Part of Termios control flags to an integral Baud Value
+ *  @ingroup TermiostypesSupport
+ */
+
 /*
  *  COPYRIGHT (c) 1989-2008.
  *  On-Line Applications Research Corporation (OAR).
diff --git a/cpukit/libcsupport/src/termios_baudtable.c b/cpukit/libcsupport/src/termios_baudtable.c
index d1d70cb19a..a3c0b78c33 100644
--- a/cpukit/libcsupport/src/termios_baudtable.c
+++ b/cpukit/libcsupport/src/termios_baudtable.c
@@ -1,3 +1,10 @@
+/**
+ *  @file
+ *
+ *  @brief  RTEMS Termios Baud Table
+ *  @ingroup TermiostypesSupport
+ */
+
 /*
  *  COPYRIGHT (c) 1989-2010.
  *  On-Line Applications Research Corporation (OAR).
diff --git a/cpukit/libcsupport/src/unlink.c b/cpukit/libcsupport/src/unlink.c
index a007cc293b..dbeacf4ea8 100644
--- a/cpukit/libcsupport/src/unlink.c
+++ b/cpukit/libcsupport/src/unlink.c
@@ -1,6 +1,11 @@
-/*
- *  unlink() - POSIX 1003.1b - 5.5.1 - Remove an existing link
+/**
+ *  @file
  *
+ *  @brief Remove an Existing Link
+ *  @ingroup libcsupport
+ */
+
+/*
  *  COPYRIGHT (c) 1989-1999.
  *  On-Line Applications Research Corporation (OAR).
  *
@@ -17,6 +22,9 @@
 
 #include <rtems/libio_.h>
 
+/**
+ *  POSIX 1003.1b - 5.5.1 - Remove an existing link
+ */
 int unlink( const char *path )
 {
   int rv = 0;
@@ -49,16 +57,13 @@ int unlink( const char *path )
   return rv;
 }
 
-/*
- *  _unlink_r
- *
- *  This is the Newlib dependent reentrant version of unlink().
- */
-
 #if defined(RTEMS_NEWLIB)
 
 #include <reent.h>
 
+/**
+ *  This is the Newlib dependent reentrant version of unlink().
+ */
 int _unlink_r(
   struct _reent *ptr __attribute__((unused)),
   const char    *path