From dc394dd4771b66453442b1abce3ad951e71d63f8 Mon Sep 17 00:00:00 2001
From: Bob McWhirter <bmcwhirt@redhat.com>
Date: Thu, 26 Aug 2021 14:03:54 -0400
Subject: [PATCH] Fixes #374: Ensure Rng's error is defmt-able.

---
 embassy-stm32/src/rng.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/embassy-stm32/src/rng.rs b/embassy-stm32/src/rng.rs
index a56fba19..77e408d3 100644
--- a/embassy-stm32/src/rng.rs
+++ b/embassy-stm32/src/rng.rs
@@ -13,6 +13,7 @@ use crate::peripherals;
 
 pub(crate) static RNG_WAKER: AtomicWaker = AtomicWaker::new();
 
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum Error {
     SeedError,
     ClockError,