From 6cef0756f7972217ef7fd05aae3fea984b696b84 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc=20W=C3=A4ckerlin?= <marc@mrw.sh>
Date: Wed, 8 Jun 2016 10:56:06 +0000
Subject: [PATCH] added APDU info

---
 src/cardos.hxx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/cardos.hxx b/src/cardos.hxx
index e9cfdf1..d53936a 100644
--- a/src/cardos.hxx
+++ b/src/cardos.hxx
@@ -24,7 +24,11 @@
 #endif
 
 /** @defgroup gcardos C++ Access to Siemens CardOS 4.4
-    Implements APDUs for accessing Siemens CardOS V4.4 smartcards. */
+
+    Implements APDUs for accessing Siemens CardOS V4.4 smartcards
+    based on <a
+    href="https://de.wikipedia.org/wiki/Application_Protocol_Data_Unit">ISO
+    7816-4</a> */
 //@{
 /// @defgroup cardosexception CardOS Exceptions
 /// @defgroup cardostypes CardOS Types