required for issue 66.
The other stuff in issue 66 ('error_closed' message), has to be
implemented if and when frappy will support serial server connections
Change-Id: I63bcd59741c3c330a72b829ce8491766ffe6c3a8
Reviewed-on: https://forge.frm2.tum.de/review/c/sine2020/secop/playground/+/27908
Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>
Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>
Markus Zolliker
3fe44d32b1