Convert BusState to enum when read with configparser (#1956)

Author: Greg Brooks

can/interfaces/pcan/pcan.py

@@ -268,6 +268,12 @@ def __init__(
 
         self.check_api_version()
 
+        if not isinstance(state, BusState):
+            try:
+                state = BusState[state]
+            except KeyError as e:
+                raise ValueError("State must be ACTIVE or PASSIVE") from e
+
         if state in [BusState.ACTIVE, BusState.PASSIVE]:
             self.state = state
         else:

doc/interfaces/pcan.rst

@@ -15,7 +15,7 @@ Here is an example configuration file for using `PCAN-USB <https://www.peak-syst
     [default]
     interface = pcan
     channel = PCAN_USBBUS1
-    state = can.bus.BusState.PASSIVE
+    state = PASSIVE
     bitrate = 500000
 
 ``channel`` (default ``"PCAN_USBBUS1"``)