Revize 0f94f9b0

re #9332 Fixed serial number being None

client/usb_detector/usb_reader.py

@@ -1 @@
-import logging
-
 import usb.core
 import usb.util
 
@@ -12 +10 @@
     for bus in busses:
         devices = bus.devices
         for dev in devices:
+            serial_number = None
+            device_info = usb.core.find(idProduct=dev.idProduct)
             try:
-                device_info = usb.core.find(idProduct=dev.idProduct)
+                serial_number = usb.util.get_string(device_info, device_info.iSerialNumber)
+            except:
+                # Failed to retrieve information from device
+                pass
+
+            if serial_number is not None:
                 detected_devices.append({
                     "vendor_id": dev.idVendor,
                     "product_id": dev.idProduct,
-                    "serial_number": usb.util.get_string(device_info, device_info.iSerialNumber)
+                    "serial_number": serial_number
                 })
-            except:
-                logging.warning(f"Failed to retrieve information from device {dev}")
 
     return detected_devices