@@ -1,8 +1,10 @@
 /*
- * Google's PCSC library requires us to write our module in C++ (thanks, Google)
- * This library wraps the actual library, written in C.
+ * Google's PCSC library requires us to write our module in C++ to initialize
+ * it.  This component handles the initialization of our module and handles
+ * incoming messages, passing them either to our library (cackey-chrome) or
+ * to the PCSC-NaCl library from Google as appropriate.
  */
 
 #include <thread>
 #include <ppapi/cpp/instance.h>
 #include <ppapi/cpp/module.h>
@@ -128,19 +130,21 @@
 			 * Verify that this message is destined for us
 			 */
 			if (!message->HasKey("target")) {
 				delete message;
 
+				/* We don't handle this message, see if PCSC-NaCl does */
 				pcscNaClHandleMessage(messagePlain);
 
 				return;
 			}
 
 			target = message->Get("target");
 			if (target.AsString() != "cackey") {
 				delete message;
 
+				/* We don't handle this message, see if PCSC-NaCl does */
 				pcscNaClHandleMessage(messagePlain);
 
 				return;
 			}
 
@@ -148,10 +152,11 @@
 			 * Determine what we are being asked to do
 			 */
 			if (!message->HasKey("command")) {
 				delete message;
 
+				/* We don't handle this message, see if PCSC-NaCl does */
 				pcscNaClHandleMessage(messagePlain);
 
 				return;
 			}