From 03570d524ce3eb96d834972eb265b672347b8efd Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@pm.me>
Date: Fri, 27 Mar 2026 11:11:59 +0100
Subject: [PATCH 1/2] add defmt support

---
 Cargo.toml       | 3 +++
 src/nor_flash.rs | 3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/Cargo.toml b/Cargo.toml
index c851083..f1aab22 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,3 +13,6 @@ documentation = "https://docs.rs/embedded-storage"
 readme = "README.md"
 keywords = ["storage"]
 categories = ["embedded", "hardware-support", "no-std"]
+
+[dependencies]
+defmt = { version = "1", optional = true }
diff --git a/src/nor_flash.rs b/src/nor_flash.rs
index c241545..3c9b9b3 100644
--- a/src/nor_flash.rs
+++ b/src/nor_flash.rs
@@ -4,7 +4,7 @@ use crate::{iter::IterableByOverlaps, ReadStorage, Region, Storage};
 ///
 /// NOR flash implementations must use an error type implementing this trait. This permits generic
 /// code to extract a generic error kind.
-pub trait NorFlashError: core::fmt::Debug {
+pub trait NorFlashError {
 	/// Convert a specific NOR flash error into a generic error kind.
 	fn kind(&self) -> NorFlashErrorKind;
 }
@@ -26,6 +26,7 @@ pub trait ErrorType {
 /// NOR flash implementations must map their error to those generic error kinds through the
 /// [`NorFlashError`] trait.
 #[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[non_exhaustive]
 pub enum NorFlashErrorKind {
 	/// The arguments are not properly aligned.

From 618bee3d5c5eed750a429ac87d19893af27ee085 Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@pm.me>
Date: Fri, 27 Mar 2026 13:35:11 +0100
Subject: [PATCH 2/2] add back trait bound

---
 src/nor_flash.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nor_flash.rs b/src/nor_flash.rs
index 3c9b9b3..186f9a9 100644
--- a/src/nor_flash.rs
+++ b/src/nor_flash.rs
@@ -4,7 +4,7 @@ use crate::{iter::IterableByOverlaps, ReadStorage, Region, Storage};
 ///
 /// NOR flash implementations must use an error type implementing this trait. This permits generic
 /// code to extract a generic error kind.
-pub trait NorFlashError {
+pub trait NorFlashError: core::fmt::Debug {
 	/// Convert a specific NOR flash error into a generic error kind.
 	fn kind(&self) -> NorFlashErrorKind;
 }