From b3f060d9ef4d999ef38c0995a325cfc6bc7ba248 Mon Sep 17 00:00:00 2001
From: Marcelo Bezerra <23555060+mmosca@users.noreply.github.com>
Date: Tue, 23 Jul 2024 10:45:04 +0200
Subject: [PATCH] Make sure DEFAULT_I2C_DEVICE is always valid

---
 src/main/target/KAKUTEF4WING/target.h |  2 ++
 src/main/target/common_post.h         | 16 ++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/src/main/target/KAKUTEF4WING/target.h b/src/main/target/KAKUTEF4WING/target.h
index 70eb12564..cd8b74ac1 100644
--- a/src/main/target/KAKUTEF4WING/target.h
+++ b/src/main/target/KAKUTEF4WING/target.h
@@ -45,6 +45,8 @@
 #define I2C2_SCL                PB10     
 #define I2C2_SDA                PB11      
 
+#define DEFAULT_I2C_BUS         BUS_I2C2
+
 // ********** External MAG On I2C2******
 #define USE_MAG
 #define MAG_I2C_BUS             BUS_I2C2
diff --git a/src/main/target/common_post.h b/src/main/target/common_post.h
index d3ccf280b..9a85d14f1 100644
--- a/src/main/target/common_post.h
+++ b/src/main/target/common_post.h
@@ -29,6 +29,22 @@ extern uint8_t __config_end;
 # undef USE_OLED_UG2864
 #endif
 
+
+// Make sure DEFAULT_I2C_BUS is valid
+#ifndef DEFAULT_I2C_BUS
+
+#ifdef USE_I2C_DEVICE_1
+#define DEFAULT_I2C_BUS BUS_I2C1
+#elif USE_I2C_DEVICE_2
+#define DEFAULT_I2C_BUS BUS_I2C2
+#elif USE_I2C_DEVICE_3
+#define DEFAULT_I2C_BUS BUS_I2C3
+#elif USE_I2C_DEVICE_4
+#define DEFAULT_I2C_BUS BUS_I2C4
+#endif
+
+#endif
+
 // Enable MSP_DISPLAYPORT for F3 targets without builtin OSD,
 // since it's used to display CMS on MWOSD
 #if !defined(USE_MSP_DISPLAYPORT) && !defined(USE_OSD)
-- 
2.11.4.GIT