python code usb config change

usb_application/usb_enum.py

@@ -0,0 +1,39 @@
+import usb.core
+import usb.util
+import sys
+
+dev = usb.core.find(idVendor=0x03eb, idProduct=0x6004)
+
+if dev is None:
+    raise ValueError("Device not found")
+else:
+    print("Found device")
+
+dev.set_configuration()
+
+cfg = dev.get_active_configuration()
+print("Active config: ")
+print(cfg)
+print("NumConfigs: " + str(dev.bNumConfigurations))
+#print(cfg.configurations)
+
+
+print("***")
+for cfg in dev:
+   print("*** Next configs: ")
+   print(cfg)
+
+print("~~~~~~")
+#cfg = usb.util.find_descriptor(dev, bConfiguration=0)
+
+# nur config(1) funktioniert
+# config(0): Device haengt
+# config(2): usb.core.USBError: [Errno 2] Entity not found
+print("dev.set_configuration(" + sys.argv[1] + ")")
+dev.set_configuration(int(sys.argv[1]))
+
+print("*** New config: ")
+cfg = dev.get_active_configuration()
+print(cfg)
+
+