diff --git a/src/lib.rs b/src/lib.rs
index d8c02dc..ff2d2cc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1,5 @@
+//! Read and write EDID data over an I2C bus.
+
 /// CLI arguments.
 pub mod args;
 /// Checksum functions for EDID.