diff --git a/tools/gencfg/lib/libstm32f4xx.ftl b/tools/gencfg/lib/libstm32f4xx.ftl
index f6df3a771..47b0659e3 100644
--- a/tools/gencfg/lib/libstm32f4xx.ftl
+++ b/tools/gencfg/lib/libstm32f4xx.ftl
@@ -25,7 +25,6 @@
   --]
 [#macro EmitADCConfig config]
   [#local cfg_name = config.@name[0]?string /]
-/* ADC Config.*/
 /**
 [@code.EmitDoxygenBrief config.@brief /]
 [@code.EmitDoxygenDetails config.details /]
diff --git a/tools/gencfg/schema/hal/abstract_driver_cfg.xsd b/tools/gencfg/schema/hal/abstract_driver_cfg.xsd
index a884cd090..d6501ff2a 100644
--- a/tools/gencfg/schema/hal/abstract_driver_cfg.xsd
+++ b/tools/gencfg/schema/hal/abstract_driver_cfg.xsd
@@ -4,5 +4,9 @@
 
   <xs:include schemaLocation="../common/doc.xsd" />
 
-  <xs:complexType name="AbstractDriverCfgType"></xs:complexType>
+  <xs:complexType name="AbstractDriverCfgType">
+    <xs:complexContent>
+      <xs:extension base="DocumentedItem"></xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
 </xs:schema>