diff --git a/drivers/char/rust_example.rs b/drivers/char/rust_example.rs
index 1761f734d23371..3008cd21b01fb4 100644
--- a/drivers/char/rust_example.rs
+++ b/drivers/char/rust_example.rs
@@ -136,6 +136,9 @@ impl KernelModule for RustExample {
 
         let mut chrdev_reg =
             chrdev::Registration::new_pinned(cstr!("rust_chrdev"), 0, &THIS_MODULE)?;
+        // Register the same kind of device twice, we're just demonstrating
+        // that you can use multiple minors. There are two minors in this case
+        // because its type is `chrdev::Registration<2>`
         chrdev_reg.as_mut().register::<RustFile>()?;
         chrdev_reg.as_mut().register::<RustFile>()?;