From 5c41631e898fb069ff3eae60f21a9b6de8790ef0 Mon Sep 17 00:00:00 2001
From: Laurent Brock <laurent.brock@universite-paris-saclay.fr>
Date: Thu, 4 Jun 2026 13:49:06 +0200
Subject: [PATCH] Warnings in Python >= 3.14: Explicitly set _layout_ to 'ms'
 in ctypes structs defining _pack_

---
 ismrmrd/image.py    | 1 +
 ismrmrd/waveform.py | 1 +
 2 files changed, 2 insertions(+)

diff --git a/ismrmrd/image.py b/ismrmrd/image.py
index 2b2044b..b4ecb27 100644
--- a/ismrmrd/image.py
+++ b/ismrmrd/image.py
@@ -44,6 +44,7 @@ def get_data_type_from_dtype(dtype):
 # Image Header
 class ImageHeader(FlagsMixin, EqualityMixin, ctypes.Structure):
     _pack_ = 2
+    _layout_ = 'ms'
     _fields_ = [("version", ctypes.c_uint16),
                 ("data_type", ctypes.c_uint16),
                 ("flags", ctypes.c_uint64),
diff --git a/ismrmrd/waveform.py b/ismrmrd/waveform.py
index 239a0c4..8ca5de3 100644
--- a/ismrmrd/waveform.py
+++ b/ismrmrd/waveform.py
@@ -9,6 +9,7 @@
 
 class WaveformHeader(FlagsMixin, EqualityMixin, ctypes.Structure):
     _pack_ = 8
+    _layout_ = 'ms'
     _fields_ = [("version", ctypes.c_uint16),
                 ("flags", ctypes.c_uint64),
                 ("measurement_uid", ctypes.c_uint32),