diff --git a/cpukit/posix/src/aio_read.c b/cpukit/posix/src/aio_read.c
index 442f2b2fcf..df8a9275c6 100644
--- a/cpukit/posix/src/aio_read.c
+++ b/cpukit/posix/src/aio_read.c
@@ -2,10 +2,9 @@
 
 /**
  * @file
- *
- * @ingroup POSIXAPI
- *
+ * 
  * @brief Asynchronously reads Data from a File
+ * @ingroup POSIX_AIO
  */
 
 /*
@@ -46,45 +45,44 @@
 #include <stdlib.h>
 #include <limits.h>
 
-/*
- *  aio_read
- *
- * Asynchronous write to a file
- *
- *  Input parameters:
- *        aiocbp - asynchronous I/O control block
- *
- *  Output parameters:
- *        -1 - request could not pe enqueued
- *           - FD not opened for write
- *           - invalid aio_reqprio or aio_offset or
- *             aio_nbytes
- *           - not enough memory
- *         0 - otherwise
- */
 
-int
-aio_read (struct aiocb *aiocbp)
+ /**
+ * @brief Asynchronous read from a file
+ * 
+ * 6.7.2 Asynchronous Read, P1003.1b-1993, p. 154
+ * 
+ * @param[in] aiocbp is a pointer to the asynchronous I/O control block
+ * 
+ * @retval 0 The request has been successfuly enqueued.
+ * @retval -1 The request has not been enqueued. The possible errors are:
+ *         - FD not opened for read
+ *         - invalid aio_reqprio or aio_offset or aio_nbytes
+ *         - not enough memory
+ *         - the starting position of the file is past the maximum offset
+ *           for this file. 
+ *
+ */
+int aio_read(struct aiocb *aiocbp)
 {
   rtems_aio_request *req;
   int mode;
 
-  mode = fcntl (aiocbp->aio_fildes, F_GETFL);
-  if (!(((mode & O_ACCMODE) == O_RDONLY) || ((mode & O_ACCMODE) == O_RDWR)))
-    rtems_aio_set_errno_return_minus_one (EBADF, aiocbp);
+  mode = fcntl(aiocbp->aio_fildes, F_GETFL);
+  if ( !((( mode&O_ACCMODE ) == O_RDONLY ) || (( mode&O_ACCMODE ) == O_RDWR )))
+    rtems_aio_set_errno_return_minus_one(EBADF, aiocbp);
   
-  if (aiocbp->aio_reqprio < 0 || aiocbp->aio_reqprio > AIO_PRIO_DELTA_MAX)
-    rtems_aio_set_errno_return_minus_one (EINVAL, aiocbp);
+  if ( aiocbp->aio_reqprio < 0 || aiocbp->aio_reqprio > AIO_PRIO_DELTA_MAX )
+    rtems_aio_set_errno_return_minus_one(EINVAL, aiocbp);
   
-  if (aiocbp->aio_offset < 0)
-    rtems_aio_set_errno_return_minus_one (EINVAL, aiocbp);
+  if ( aiocbp->aio_offset < 0 )
+    rtems_aio_set_errno_return_minus_one(EINVAL, aiocbp);
 
-  req = malloc (sizeof (rtems_aio_request));
-  if (req == NULL)
-    rtems_aio_set_errno_return_minus_one (EAGAIN, aiocbp);
+  req = malloc(sizeof(rtems_aio_request));
+  if ( req == NULL )
+    rtems_aio_set_errno_return_minus_one(EAGAIN, aiocbp);
 
   req->aiocbp = aiocbp;
   req->aiocbp->aio_lio_opcode = LIO_READ;
 
-  return rtems_aio_enqueue (req);
+  return rtems_aio_enqueue(req);
 }