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-rw-r--r--src/H5Tmodule.h36
1 files changed, 32 insertions, 4 deletions
diff --git a/src/H5Tmodule.h b/src/H5Tmodule.h
index c489edc..73424fb 100644
--- a/src/H5Tmodule.h
+++ b/src/H5Tmodule.h
@@ -29,10 +29,38 @@
#define H5_MY_PKG_ERR H5E_DATATYPE
#define H5_MY_PKG_INIT YES
-/**
- * \defgroup H5T H5T
- * \brief Datatype Interface
- * \todo Describe concisely what the functions in this module are about.
+/**\defgroup H5T H5T
+ *
+ * Use the functions in this module to manage HDF5 datatypes.
+ *
+ * HDF5 datatypes describe the element type of HDF5 datasets and attributes.
+ * There's a large set of predefined datatypes, but users may find it useful
+ * to define new datatypes through a process called \Emph{derivation}.
+ *
+ * The element type is automatically persisted as part of the HDF5 metadata of
+ * attributes and datasets. Additionally, datatype definitions can be persisted
+ * to HDF5 files and linked to groups as HDF5 datatype objects or so-called
+ * \Emph{committed datatypes}.
+ *
+ * <table>
+ * <tr><th>Create</th><th>Read</th></tr>
+ * <tr valign="top">
+ * <td>
+ * \snippet{lineno} H5T_examples.c create
+ * </td>
+ * <td>
+ * \snippet{lineno} H5T_examples.c read
+ * </td>
+ * <tr><th>Update</th><th>Delete</th></tr>
+ * <tr valign="top">
+ * <td>
+ * \snippet{lineno} H5T_examples.c update
+ * </td>
+ * <td>
+ * \snippet{lineno} H5T_examples.c delete
+ * </td>
+ * </tr>
+ * </table>
*
* \defgroup ARRAY Array Datatypes
* \ingroup H5T