almost make new binary protocol work with python (up to fetching and parsing the JSON)

tools/odrive/util.py

@@ -1,9 +1,6 @@
 # requires pyusb
 #   pip install --pre pyusb
 
-import time
-import usb.core
-import usb.util
 
 # Exceptions
 class ODriveError(Exception):
@@ -12,33 +9,10 @@ class ODriveError(Exception):
 class ODriveNotConnectedError(ODriveError):
   pass
 
-# ODrive generic        1209:0D31
-USBID_VID_ODRIVE        = 0x1209
-USBID_PID_ODRIVE        = 0x0D31
-# ODrive rev 3.1        1209:0D31
-USBID_VID_ODRIVE_3_1    = USBID_VID_ODRIVE
-USBID_PID_ODRIVE_3_1    = USBID_PID_ODRIVE
-USB_DEV_ODRIVE_3_1      = (USBID_VID_ODRIVE_3_1, USBID_PID_ODRIVE_3_1)
+USB_DEV_ODRIVE_3_1      = (0x1209, 0x0D31)
+USB_DEV_ODRIVE_3_3      = (0x1209, 0x0D33)
 # all devices
-all_devices         = [USB_DEV_ODRIVE_3_1]
-
-# device messages
-DEVICE_NOT_FOUND    = 'ODrive Not Found'
-DEVICE_FOUND        = 'ODrive Found!'
+USB_VID_PID_PAIRS         = [USB_DEV_ODRIVE_3_1, USB_DEV_ODRIVE_3_3]
 
 def noprint(x):
   pass
-
-def poll_odrive_device(devices=all_devices, intv=1, printer=noprint):
-  while 1:
-    time.sleep(intv)
-    for device in devices:
-      try:
-        idVendor  = device[0]
-        idProduct = device[1]
-        dev = usb.core.find(idVendor=idVendor, idProduct=idProduct)
-        if dev is not None:
-          printer(DEVICE_FOUND)
-          return device
-      except:
-        printer(DEVICE_NOT_FOUND)