fix

src/components/usb_586x.py

@@ -39,6 +39,7 @@ class USB_586x(Component):
 
     def __init__(self, config=None, name=None, period=1, lazy=True, paused=False, threaded=True):
         super().__init__(config=config, name=name, period=period, lazy=lazy, paused=paused, threaded=threaded)
+        self.buffer = None
         self.io_ok = False
         self.mutex = QMutex()
         self.simulate="--sim-io" in sys.argv
@@ -73,6 +74,7 @@ class USB_586x(Component):
     def open_device(self):
         # DIGITAL I/O CLASS
         if not self.simulate:
+            self.log.info("OPENING USB MODULE...")
             if is_win:
                 try:
                     self.di_ctrl = InstantDiCtrl(self.info.Description)
@@ -188,6 +190,8 @@ class USB_586x(Component):
                         else:
                             self.buffer = None
                             self.log.error(f"READ ERROR")
+                            self.di_ctrl.dispose()
+                            self.do_ctrl.dispose()
                             self.io_ok = False