interface for changing bitrate

can/bus.py

@@ -314,6 +314,25 @@ def __iter__(self) -> Iterator[Message]:
             if msg is not None:
                 yield msg
 
+    @property
+    @abstractmethod
+    def bitrate(self) -> int:
+        raise NotImplementedError("Device must implement bitrate")
+
+    @bitrate.setter
+    @abstractmethod
+    def bitrate(self, bitrate: int) -> None:
+        """Changes the bitrate of the underlying bus.
+
+        Override this method to enable runtime bitrate changes.
+
+        :param int bitrate: the new bitrate to set.
+
+        :raises can.CanError:
+            if the message could not be sent
+        """
+        raise NotImplementedError("Device not capable of runtime bitrate change")
+
     @property
     def filters(self) -> Optional[can.typechecking.CanFilters]:
         """

can/interfaces/vector/canlib.py

@@ -233,6 +233,7 @@ def __init__(
         )
 
         if permission_mask.value == self.mask:
+            self.bitrate = bitrate
             if fd:
                 self.canFdConf = xlclass.XLcanFdConf()
                 if bitrate:
@@ -515,6 +516,15 @@ def handle_canfd_event(self, event: xlclass.XLcanRxEvent) -> None:
     def send(self, msg: Message, timeout: typing.Optional[float] = None):
         self._send_sequence([msg])
 
+    @property
+    def bitrate(self) -> int:
+        return self.bitrate
+
+    @bitrate.setter
+    def bitrate(self, bitrate: int) -> None:
+        xldriver.xlCanSetChannelBitrate(self.port_handle, self.mask, bitrate)
+        LOG.info("SetChannelBitrate: baudr.=%u", bitrate)
+
     def _send_sequence(self, msgs: typing.Sequence[Message]) -> int:
         """Send messages and return number of successful transmissions."""
         if self.fd: