diff --git a/respeaker/usb_hid/hidapi_backend.py b/respeaker/usb_hid/hidapi_backend.py
index f117e0b..76de8db 100644
--- a/respeaker/usb_hid/hidapi_backend.py
+++ b/respeaker/usb_hid/hidapi_backend.py
@@ -53,7 +53,7 @@ def getAllConnectedInterface():
         returns an array of HidApiUSB (Interface) objects
         """
 
-        devices = hid.enumerate()
+        devices = hid.enumerate(0,0)
 
         if not devices:
             logging.debug("No Mbed device connected")