Improved parameter updating, added SLAB devices to mac list

src/comm/SerialLink.cc

@@ -324,7 +324,11 @@ QVector<QString>* SerialLink::getCurrentPorts()
     QFileInfoList list = dir.entryInfoList();
     for (int i = list.size() - 1; i >= 0; i--) {
         QFileInfo fileInfo = list.at(i);
-        if (fileInfo.fileName().contains(QString("ttyUSB")) || fileInfo.fileName().contains(QString("ttyS")) || fileInfo.fileName().contains(QString("tty.usbserial")) || fileInfo.fileName().contains(QString("ttyACM")))
+        if (fileInfo.fileName().contains(QString("ttyUSB")) ||
+                fileInfo.fileName().contains(QString("tty.usb")) ||
+                fileInfo.fileName().contains(QString("ttyS")) ||
+                fileInfo.fileName().contains(QString("tty.SLAB")) ||
+                fileInfo.fileName().contains(QString("ttyACM")))
         {
             ports->append(fileInfo.canonicalFilePath());
         }

src/ui/QGCParamWidget.cc

@@ -145,7 +145,7 @@ QGCParamWidget::QGCParamWidget(UASInterface* uas, QWidget *parent) :
     connect(&retransmissionTimer, SIGNAL(timeout()), this, SLOT(retransmissionGuardTick()));
 
     // Get parameters
-    if (uas) mav->requestParameters();
+    if (uas) requestParameterList();
 }
 
 void QGCParamWidget::loadSettings()