From f5374490caa5f23ae8360df4e7957965eb196349 Mon Sep 17 00:00:00 2001
From: jopohl <Johannes.Pohl90@gmail.com>
Date: Sun, 24 Apr 2016 09:53:41 +0200
Subject: [PATCH] Catch none Backend

---
 src/urh/dev/VirtualDevice.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/urh/dev/VirtualDevice.py b/src/urh/dev/VirtualDevice.py
index 8cfb283d..fefcb57c 100644
--- a/src/urh/dev/VirtualDevice.py
+++ b/src/urh/dev/VirtualDevice.py
@@ -70,6 +70,8 @@ class VirtualDevice(QObject):
             self.__dev.rcv_index_changed.connect(self.emit_index_changed)
             if mode == Mode.send:
                 self.__dev.init_send_parameters(samples_to_send, sending_repeats, skip_device_parameters=True)
+        elif self.backend == Backends.none:
+            self.__dev = None
         else:
             raise ValueError("Unsupported Backend")