diff --git a/src/generator.rs b/src/generator.rs
index f7b11b2..3ca8f27 100644
--- a/src/generator.rs
+++ b/src/generator.rs
@@ -1,6 +1,9 @@
 //! Generate register interface rust code from types in [`crate::types`].
 //!
 //! root: [`CodeGen`]
+//!
+//! # TODO
+//! add docs (especially fields and registers)
 
 use crate::{
     type_traits::GetName,