get/set widget metadata

protocol/enttec/dmx-usb-pro/widget.cpp

@@ -228,6 +228,43 @@ void Widget::sendMessage(std::shared_ptr<Pro::MessageData> msg) const
 }
 
 
+/**
+ * @brief Widget::getSerialNumber
+ * @param timeout block for up to 'timeout' milliseconds waiting for a reply
+ */
+void Widget::getSerialNumber()
+{
+  auto msg = std::make_shared<Pro::MsgGetWidgetSerialRequest>();
+  sendMessage(msg);
+}
+
+
+/**
+ * @brief Widget::getParameters
+ * @param user_length
+ */
+void Widget::getParameters(size_t user_length)
+{
+  auto msg = std::make_shared<Pro::MsgGetWidgetParametersRequest>();
+  msg->size = std::min(user_length, Pro::USER_CONFIGURATION_MAX);
+  sendMessage(msg);
+}
+
+
+/**
+ * @brief Widget::setParameters
+ */
+void Widget::setParameters()
+{
+  auto msg = std::make_shared<Pro::MsgSetWidgetParametersRequest>();
+  msg->break_time = tx_break_intervals;
+  msg->mab_time = tx_mab_intervals;
+  msg->rate = tx_rate;
+  msg->user_data = user_configuration;
+  sendMessage(msg);
+}
+
+
 /**
  * @brief Widget::rxMsgReprogramFirmware
  * @param msg

protocol/enttec/dmx-usb-pro/widget.h

@@ -78,6 +78,10 @@ protected:
   void routeRxMessage(std::shared_ptr<Pro::MessageData>);
   virtual void sendMessage(std::shared_ptr<Pro::MessageData>) const;
 
+  void getSerialNumber();
+  void getParameters(size_t user_length = 0);
+  void setParameters();
+
   /**
    * @brief writeFwPage
    * @return