Added more comments
diff --git a/include/FTFont.h b/include/FTFont.h
index 3577a76..ff8bcdd 100755
--- a/include/FTFont.h
+++ b/include/FTFont.h
@@ -71,7 +71,7 @@ class FTFont
/**
* Sets the character map for the face.
*
- * @param encoding XXXXXXXXX
+ * @param encoding Freetype enumerate for char map code.
* @return <code>true</code> if charmap was valid and
* set correctly
*/