From a71a9c9bf06a30276dfb8292589c4592f9fe55fc Mon Sep 17 00:00:00 2001
From: Billy Price <williamp@microsoft.com>
Date: Mon, 9 Mar 2026 16:30:30 -0700
Subject: [PATCH 1/4] Trait to feed watchdog

---
 embedded-mcu-hal/src/lib.rs      |  2 ++
 embedded-mcu-hal/src/watchdog.rs | 21 +++++++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 embedded-mcu-hal/src/watchdog.rs

diff --git a/embedded-mcu-hal/src/lib.rs b/embedded-mcu-hal/src/lib.rs
index 0b7ae05..f148106 100644
--- a/embedded-mcu-hal/src/lib.rs
+++ b/embedded-mcu-hal/src/lib.rs
@@ -5,3 +5,5 @@ pub mod time;
 /// Traits for NVRAM (Non-Volatile Random Access Memory) storage and management.
 mod nvram;
 pub use nvram::{Nvram, NvramStorage};
+
+pub mod watchdog;
diff --git a/embedded-mcu-hal/src/watchdog.rs b/embedded-mcu-hal/src/watchdog.rs
new file mode 100644
index 0000000..f0bf69f
--- /dev/null
+++ b/embedded-mcu-hal/src/watchdog.rs
@@ -0,0 +1,21 @@
+//! Traits for interactions with a processor's watchdog timer.
+
+/// Feeds an existing watchdog to ensure the processor isn't reset.
+pub trait Watchdog {
+    /// An enumeration of `Watchdog` errors.
+    ///
+    type Error: core::fmt::Debug;
+
+    /// Restarts the countdown on the watchdog. This must be done once the watchdog is started
+    /// to prevent the processor being reset.
+    ///
+    fn feed(&mut self) -> Result<(), Self::Error>;
+}
+
+impl<T: Watchdog> Watchdog for &mut T {
+    type Error = T::Error;
+
+    fn feed(&mut self) -> Result<(), Self::Error> {
+        T::feed(self)
+    }
+}

From 8dcd438e49daba5bded8594101b1fd13cfa8e6fb Mon Sep 17 00:00:00 2001
From: Billy Price <williamp@microsoft.com>
Date: Mon, 9 Mar 2026 16:51:44 -0700
Subject: [PATCH 2/4] send

---
 embedded-mcu-hal/src/watchdog.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/embedded-mcu-hal/src/watchdog.rs b/embedded-mcu-hal/src/watchdog.rs
index f0bf69f..eb6ce65 100644
--- a/embedded-mcu-hal/src/watchdog.rs
+++ b/embedded-mcu-hal/src/watchdog.rs
@@ -1,7 +1,7 @@
 //! Traits for interactions with a processor's watchdog timer.
 
 /// Feeds an existing watchdog to ensure the processor isn't reset.
-pub trait Watchdog {
+pub trait Watchdog: Send {
     /// An enumeration of `Watchdog` errors.
     ///
     type Error: core::fmt::Debug;

From e4205d9289d7bc7fc0290c43d09e6d784c2fb70e Mon Sep 17 00:00:00 2001
From: Billy Price <williamp@microsoft.com>
Date: Mon, 16 Mar 2026 11:33:19 -0700
Subject: [PATCH 3/4] remove ref impl for watchdog trait

---
 embedded-mcu-hal/src/watchdog.rs | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/embedded-mcu-hal/src/watchdog.rs b/embedded-mcu-hal/src/watchdog.rs
index eb6ce65..8d94be1 100644
--- a/embedded-mcu-hal/src/watchdog.rs
+++ b/embedded-mcu-hal/src/watchdog.rs
@@ -11,11 +11,3 @@ pub trait Watchdog: Send {
     ///
     fn feed(&mut self) -> Result<(), Self::Error>;
 }
-
-impl<T: Watchdog> Watchdog for &mut T {
-    type Error = T::Error;
-
-    fn feed(&mut self) -> Result<(), Self::Error> {
-        T::feed(self)
-    }
-}

From 43259ac270d3c811ea8d41ae6c4769d296a5c076 Mon Sep 17 00:00:00 2001
From: Billy Price <williamp@microsoft.com>
Date: Tue, 17 Mar 2026 09:09:03 -0700
Subject: [PATCH 4/4] Revert "send"

This reverts commit 8dcd438e49daba5bded8594101b1fd13cfa8e6fb.
---
 embedded-mcu-hal/src/watchdog.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/embedded-mcu-hal/src/watchdog.rs b/embedded-mcu-hal/src/watchdog.rs
index 8d94be1..18a7979 100644
--- a/embedded-mcu-hal/src/watchdog.rs
+++ b/embedded-mcu-hal/src/watchdog.rs
@@ -1,7 +1,7 @@
 //! Traits for interactions with a processor's watchdog timer.
 
 /// Feeds an existing watchdog to ensure the processor isn't reset.
-pub trait Watchdog: Send {
+pub trait Watchdog {
     /// An enumeration of `Watchdog` errors.
     ///
     type Error: core::fmt::Debug;