From ebc14611dfe6412bac17bab55aa971c92cb36e46 Mon Sep 17 00:00:00 2001
From: Sliim <sliim@mailoo.org>
Date: Tue, 22 Aug 2017 19:28:05 +0200
Subject: [PATCH] Can be useful to know if pyusb is not able to find any
 backend

---
 jackit/lib/nrf24.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/jackit/lib/nrf24.py b/jackit/lib/nrf24.py
index 3a1c2b7..0ed7965 100644
--- a/jackit/lib/nrf24.py
+++ b/jackit/lib/nrf24.py
@@ -69,7 +69,7 @@ def __init__(self, index=0):
         try:
             self.dongle = list(usb.core.find(idVendor=0x1915, idProduct=0x0102, find_all=True))[index]
             self.dongle.set_configuration()
-        except usb.core.USBError as ex:
+        except (usb.core.NoBackendError, usb.core.USBError) as ex:
             raise ex
         except:
             raise Exception('Cannot find USB dongle.')