diff -r a5496987b1da -r 189ece41fa29 kernel/eka/include/drivers/iic_transaction.h
--- a/kernel/eka/include/drivers/iic_transaction.h	Thu Jul 01 17:57:33 2010 +0100
+++ b/kernel/eka/include/drivers/iic_transaction.h	Fri Jul 09 13:13:20 2010 +0100
@@ -421,6 +421,7 @@
         inline TIicBusTransaction();
     
         // the client interface for creating half duplex transactions
+		// The parameter aPriority is required to be at least zero and less than KNumTrancPriorities.
         inline TIicBusTransaction(TDes8* aHeader, TIicBusTransfer* aHdTrans, TInt aPriority=0);
         inline ~TIicBusTransaction();
         inline TInt SetHalfDuplexTrans(TDes8* aHeader, TIicBusTransfer* aHdTrans);