diff --git a/meson.options b/meson.options
index 6d75e73..5a21171 100644
--- a/meson.options
+++ b/meson.options
@@ -243,3 +243,11 @@
     type: 'feature',
     description: 'Support open-power specific functions',
 )
+
+# HW transport
+option(
+    'transport-implementation',
+    type: 'combo',
+    choices: ['null', 'serial'],
+    description: 'transport'
+)