Because IntelliJ makes life hard.
#![macro_use]
#[cfg_attr(usart_v1, path = "v1.rs")]
-//#[cfg_attr(usart_v2, path = "v2.rs")]
+#[cfg_attr(usart_v2, path = "v2.rs")]
mod _version;
use crate::peripherals;
pub use _version::*;
