Filesystem: PR2146: Documentation

1 files changed, 28 insertions, 11 deletions

diff --git a/cpukit/libcsupport/include/rtems/libio.h b/cpukit/libcsupport/include/rtems/libio.h
index f3a918169a..8eda539948 100644
--- a/cpukit/libcsupport/include/rtems/libio.h
+++ b/cpukit/libcsupport/include/rtems/libio.h
@@ -1534,7 +1534,7 @@ int rtems_filesystem_unregister(
 );
 
 /**
- * @brief Unmounts the file system at @a mount_path.
+ * @brief Unmounts the file system instance at the specified mount path.
  *
  * The function waits for the unmount process completion.  In case the calling
  * thread uses resources of the unmounted file system the function may never
@@ -1548,6 +1548,8 @@ int rtems_filesystem_unregister(
  * A concurrent unmount request for the same file system instance has
  * unpredictable effects.
  *
+ * @param[in] mount_path The path to the file system instance mount point.
+ *
  * @retval 0 Successful operation.
  * @retval -1 An error occurred.  The @c errno indicates the error.
  *
@@ -1558,14 +1560,10 @@ int unmount(
 );
 
 /**
- * @brief Mounts a file system at @a target.
+ * @brief Mounts a file system instance at the specified target path.
  *
- * The @a source may be a path to the corresponding device file, or @c NULL.
- * The @a target path must lead to an existing directory, or @c NULL.
- * In case @a target is @c NULL, the root file system will be mounted.
- * The @a data parameter will be forwarded to the file system
- * initialization handler.  The file system type is selected by
- * @a filesystemtype and may be one of
+ * To mount a standard file system instance one of the following defines should
+ * be used to select the file system type
  * - RTEMS_FILESYSTEM_TYPE_DEVFS,
  * - RTEMS_FILESYSTEM_TYPE_DOSFS,
  * - RTEMS_FILESYSTEM_TYPE_FTPFS,
@@ -1575,8 +1573,9 @@ int unmount(
  * - RTEMS_FILESYSTEM_TYPE_RFS, or
  * - RTEMS_FILESYSTEM_TYPE_TFTPFS.
  *
- * Only configured or registered file system types are available.
- * You can add file system types to your application configuration with
+ * Only configured or registered file system types are available.  You can add
+ * file system types to your application configuration with the following
+ * configuration options
  * - CONFIGURE_FILESYSTEM_DEVFS,
  * - CONFIGURE_FILESYSTEM_DOSFS,
  * - CONFIGURE_FILESYSTEM_FTPFS,
@@ -1586,10 +1585,28 @@ int unmount(
  * - CONFIGURE_FILESYSTEM_RFS, and
  * - CONFIGURE_FILESYSTEM_TFTPFS.
  *
- * @see rtems_filesystem_register() and mount_and_make_target_path().
+ * In addition to these configuration options file system types can be
+ * registered with rtems_filesystem_register().
+ *
+ * @param[in] source The source parameter will be forwarded to the file system
+ * initialization handler.  Usually the source is a path to the corresponding
+ * device file, or @c NULL.
+ * @param[in] target The target path must lead to an existing directory, or
+ * must be @c NULL.  In case the target is @c NULL, the root file system will
+ * be mounted.
+ * @param[in] filesystemtype This string selects the file system type.
+ * @param[in] options The options specify if the file system instance allows
+ * read-write or read-only access.
+ * @param[in] data The data parameter will be forwarded to the file system
+ * initialization handler.  It can be used to pass file system specific mount
+ * options.  The data structure for mount options is file system specific.  See
+ * also in the corresponding file system documentation.
  *
  * @retval 0 Successful operation.
  * @retval -1 An error occurred.  The @c errno indicates the error.
+ *
+ * @see rtems_filesystem_register(), mount_and_make_target_path(), @ref DOSFS
+ * and @ref JFFS2.
  */
 int mount(
   const char                 *source,