USBDevice: now closing device before releasing it to the kernel.

pyad2/devices.py

@@ -284,11 +284,11 @@ class USBDevice(Device):
         Closes the device.
         """
         try:
+            Device.close(self)
+
             # HACK: Probably should fork pyftdi and make this call in .close().
             self._device.usb_dev.attach_kernel_driver(self._device_number)
 
-            Device.close(self)
-
         except:
             pass