diff --git a/include/ipmid/oemopenbmc.hpp b/include/ipmid/oemopenbmc.hpp
new file mode 100644
index 0000000..b7b3a30
--- /dev/null
+++ b/include/ipmid/oemopenbmc.hpp
@@ -0,0 +1,22 @@
+#pragma once
+
+#include <ipmid/api.h>
+
+#include <ipmid/oemrouter.hpp>
+
+namespace oem
+{
+/*
+ * OpenBMC OEM Extension IPMI Command codes.
+ */
+enum Cmd
+{
+    gpioCmd = 1,
+    i2cCmd = 2,
+    flashCmd = 3,
+    fanManualCmd = 4,
+    ethStatsCmd = 48,
+    blobTransferCmd = 128,
+};
+
+} // namespace oem