From 507ab623b23fda0043f0eba8bc5823ca9493062b Mon Sep 17 00:00:00 2001
From: Thomas Watson <twatson52@icloud.com>
Date: Sun, 10 Dec 2023 11:06:16 -0600
Subject: [PATCH] AP_HAL_ChibiOS: pass UARTs to AP_HAL in SERIALn order

---
 libraries/AP_HAL_ChibiOS/HAL_ChibiOS_Class.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libraries/AP_HAL_ChibiOS/HAL_ChibiOS_Class.cpp b/libraries/AP_HAL_ChibiOS/HAL_ChibiOS_Class.cpp
index 46b352e564..a481977b02 100644
--- a/libraries/AP_HAL_ChibiOS/HAL_ChibiOS_Class.cpp
+++ b/libraries/AP_HAL_ChibiOS/HAL_ChibiOS_Class.cpp
@@ -137,9 +137,9 @@ AP_IOMCU iomcu(uart_io);
 HAL_ChibiOS::HAL_ChibiOS() :
     AP_HAL::HAL(
         &uartADriver,
-        &uartBDriver,
-        &uartCDriver,
+        &uartCDriver, // ordering captures the historical use of uartB as SERIAL3
         &uartDDriver,
+        &uartBDriver,
         &uartEDriver,
         &uartFDriver,
         &uartGDriver,