1 files changed, 9 insertions, 3 deletions
diff --git a/lib/rpcs16.h b/lib/rpcs16.h
index 7085939..cc4d601 100644
--- a/lib/rpcs16.h
+++ b/lib/rpcs16.h
@@ -5,19 +5,25 @@
 
 class ppsocket;
 class bufferStore;
+class rpcsfactory;
 
 /**
  * This is the implementation of the @ref rpcs protocol for
- * Psion series 3 (SIBO) variant.
- * For a complete documentation, see @ref rpcs .
+ * Psion series 3 (SIBO) variant.  You normally never create
+ * objects of this class directly. Thus the constructor is
+ * private. Use @ref rpcsfactory for creating an instance of
+ * @ref rpcs . For a complete documentation, see @ref rpcs .
  */
 class rpcs16 : public rpcs {
+	friend rpcsfactory;
+
  public:
-	rpcs16(ppsocket *);
 	~rpcs16();
 	
 	Enum<rfsv::errs> queryDrive(const char, bufferArray &);
 	Enum<rfsv::errs> getCmdLine(const char *, bufferStore &); 
+ private:
+	rpcs16(ppsocket *);
 };
 
 #endif