CAN interface

add next mid function

tools/CAN/CAN_interface.cpp

@@ -1,7 +1,7 @@
 #include "CAN_interface.hpp"
 
 CAN_Interface::CAN_Interface(QString dev, QObject *parent)
-: QObject(parent)
+    : QObject(parent), m_mid(0)
 {
     if (!QCanBus::instance()->plugins().contains(QStringLiteral("socketcan"))) {
         throw std::runtime_error("CAN Interface: socketcan plugin not found");
@@ -33,3 +33,9 @@ void CAN_Interface::send_frame(const QCanBusFrame &frame)
 {
     m_canDevice->writeFrame(frame);
 }
+
+
+uint8_t CAN_Interface::next_mid()
+{
+    return m_mid++;
+}