1 files changed, 3 insertions, 0 deletions
diff --git a/fw/can.h b/fw/can.h
index 621b20f..37c6bc7 100644
--- a/fw/can.h
+++ b/fw/can.h
@@ -113,3 +113,6 @@ void canSetFilter4(const CanId *filter);
 // Set message acceptance filter 5 (RXB1).
 // The MCP2515 must be in Config mode.
 void canSetFilter5(const CanId *filter);
+
+// Compare two CAN IDs.
+bool canIdEq(const CanId *a, const CanId *b);