From 8965473452268f3028f0e3037d599a53399143f2 Mon Sep 17 00:00:00 2001
From: Pieter Pas <pieter.p.dev@outlook.com>
Date: Mon, 4 Nov 2024 20:24:29 +0100
Subject: [PATCH 1/2] Add interrupt_t

---
 src/AH/Hardware/Arduino-Hardware-Types.hpp | 11 +++++++++++
 src/AH/STL/type_traits                     |  9 ++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/AH/Hardware/Arduino-Hardware-Types.hpp b/src/AH/Hardware/Arduino-Hardware-Types.hpp
index 46e09187ce..9c1195051c 100644
--- a/src/AH/Hardware/Arduino-Hardware-Types.hpp
+++ b/src/AH/Hardware/Arduino-Hardware-Types.hpp
@@ -4,6 +4,7 @@
 #include <AH/Types/FunctionTraits.hpp>
 
 #include <AH/Arduino-Wrapper.h> // pin functions and constants
+#include <AH/STL/type_traits>
 
 #if defined(ARDUINO_API_VERSION)
 
@@ -62,9 +63,19 @@ constexpr PinMode_t INPUT_PULLUP = AH_pin_detail::tmp_INPUT_PULLUP;
 #endif // ARDUINO_API_VERSION
 
 BEGIN_AH_NAMESPACE
+
 template <class T>
 constexpr ArduinoPin_t arduino_pin_cast(T t) {
     return static_cast<ArduinoPin_t>(t);
 }
 constexpr ArduinoPin_t arduino_pin_cast(pin_t t) { return t.pin; }
+#ifdef NOT_AN_INTERRUPT
+using not_an_interrupt_t = decltype(NOT_AN_INTERRUPT);
+/// Type of interrupt indices (result of digitalPinToInterrupt).
+using interrupt_t =
+    std::conditional<std::is_enum<not_an_interrupt_t>::value,
+                     std::underlying_type<not_an_interrupt_t>,
+                     type_identity<not_an_interrupt_t>>::type::type;
+#endif
+
 END_AH_NAMESPACE
diff --git a/src/AH/STL/type_traits b/src/AH/STL/type_traits
index 4b8bfb5d2c..1e0e76dfa2 100644
--- a/src/AH/STL/type_traits
+++ b/src/AH/STL/type_traits
@@ -16,4 +16,11 @@ using enable_if_t = typename enable_if<B, T>::type;
 
 #endif
 
-} // namespace std
\ No newline at end of file
+} // namespace std
+
+BEGIN_AH_NAMESPACE
+template <class T>
+struct type_identity {
+    using type = T;
+};
+END_AH_NAMESPACE
\ No newline at end of file

From 4ded80ebbcf1f6e243b21325b88c123c6b8589fd Mon Sep 17 00:00:00 2001
From: Pieter Pas <pieter.p.dev@outlook.com>
Date: Sat, 9 Nov 2024 15:09:30 +0100
Subject: [PATCH 2/2] Define interrupt_t for SAMD

---
 src/AH/Hardware/Arduino-Hardware-Types.hpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/AH/Hardware/Arduino-Hardware-Types.hpp b/src/AH/Hardware/Arduino-Hardware-Types.hpp
index 9c1195051c..e0c7dec6b4 100644
--- a/src/AH/Hardware/Arduino-Hardware-Types.hpp
+++ b/src/AH/Hardware/Arduino-Hardware-Types.hpp
@@ -69,7 +69,8 @@ constexpr ArduinoPin_t arduino_pin_cast(T t) {
     return static_cast<ArduinoPin_t>(t);
 }
 constexpr ArduinoPin_t arduino_pin_cast(pin_t t) { return t.pin; }
-#ifdef NOT_AN_INTERRUPT
+#if (defined(NOT_AN_INTERRUPT) || defined(ARDUINO_API_VERSION)) &&             \
+    !defined(ARDUINO_ARCH_RENESAS)
 using not_an_interrupt_t = decltype(NOT_AN_INTERRUPT);
 /// Type of interrupt indices (result of digitalPinToInterrupt).
 using interrupt_t =