vector: Skip channels without CAN support

Skip any channels that don't have support for CAN (ex. LIN,
Digital/Analog IO) instead of accepting everything when using
auto-detection.

Note: This is a backport of #641 to 3.3.4

Addresses #908

Author: karlding

can/interfaces/vector/canlib.py

@@ -387,6 +387,8 @@ def _detect_available_configs():
         channel_configs = get_channel_configs()
         LOG.info('Found %d channels', len(channel_configs))
         for channel_config in channel_configs:
+            if not channel_config.channelBusCapabilities & vxlapi.XL_BUS_ACTIVE_CAP_CAN:
+                continue
             LOG.info('Channel index %d: %s',
                      channel_config.channelIndex,
                      channel_config.name.decode('ascii'))

can/interfaces/vector/vxlapi.py

@@ -63,6 +63,7 @@
 XL_INTERFACE_VERSION = 3
 XL_INTERFACE_VERSION_V4 = 4
 
+XL_BUS_ACTIVE_CAP_CAN = XL_BUS_TYPE_CAN << 16
 XL_CHANNEL_FLAG_CANFD_ISO_SUPPORT = 0x80000000
 
 # structure for XL_RECEIVE_MSG, XL_TRANSMIT_MSG