Add general purpose waiting future
diff --git a/src/lib.rs b/src/lib.rs
index 1d4f26b..004c4d3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -19,6 +19,7 @@
 pub mod console;
 pub mod debug;
 pub mod electronics;
+pub mod futures;
 pub mod gpio;
 pub mod led;
 pub mod memop;