Add a pointer to the device-controller-plugin. The main window will always be

owned by the GUI thread, and the GUI thread is loading the plugin. Hence the
worker-thread does not block itself when inside a QT slot.

mainwindow.cpp

@@ -3,21 +3,22 @@
 #include "worker.h"
 #include "utils.h"
 #include "progress_event.h"
+#include "plugins/interfaces.h"
 
 #include <QDateTime>
 #include <QMessageBox>
 #include <QDebug>
 #include <QScrollBar>
 
-MainWindow::MainWindow(Worker *worker, QWidget *parent)
+MainWindow::MainWindow(hwinf *hw, Worker *worker, QWidget *parent)
     : QMainWindow(parent)
     , ui(new Ui::MainWindow)
+    , m_hw(hw)
     , m_worker(worker)
     , m_width(70)
     , m_progressRunning(false)
     , m_progressValue(0) {
 
-
     this->setStatusBar(new QStatusBar(this));
     QFont f;
     f.setStyleHint(QFont::Monospace);