From ec5b9518eafc10569bb955fedcf6cede6607d075 Mon Sep 17 00:00:00 2001
From: Marin Doetterer <marin@auterion.com>
Date: Wed, 22 Jul 2026 15:07:29 +0200
Subject: [PATCH] fix(uavcan/rangefinder): rangefinder does track
 init-variables now for all instances

---
 src/drivers/uavcan/sensors/rangefinder.cpp | 6 ++++--
 src/drivers/uavcan/sensors/rangefinder.hpp | 2 +-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/drivers/uavcan/sensors/rangefinder.cpp b/src/drivers/uavcan/sensors/rangefinder.cpp
index 9a31e0fea59..358a1bb6b7c 100644
--- a/src/drivers/uavcan/sensors/rangefinder.cpp
+++ b/src/drivers/uavcan/sensors/rangefinder.cpp
@@ -82,7 +82,9 @@ void UavcanRangefinderBridge::range_sub_cb(const
 		return;
 	}
 
-	if (!_inited) {
+	const int8_t channel_idx = get_channel_index_for_node(msg.getSrcNodeID().get());
+
+	if (channel_idx >= 0 && !_channel_initialized[channel_idx]) {
 
 		uint8_t rangefinder_type = 0;
 
@@ -107,7 +109,7 @@ void UavcanRangefinderBridge::range_sub_cb(const
 		rangefinder->set_min_distance(_range_min_m);
 		rangefinder->set_max_distance(_range_max_m);
 
-		_inited = true;
+		_channel_initialized[channel_idx] = true;
 	}
 
 	// TOO_CLOSE, TOO_FAR and UNDEFINED readings do not carry a usable range
diff --git a/src/drivers/uavcan/sensors/rangefinder.hpp b/src/drivers/uavcan/sensors/rangefinder.hpp
index 7c50bcdcb24..4fd61980ca6 100644
--- a/src/drivers/uavcan/sensors/rangefinder.hpp
+++ b/src/drivers/uavcan/sensors/rangefinder.hpp
@@ -70,6 +70,6 @@ private:
 	float _range_min_m{0.0f};
 	float _range_max_m{0.0f};
 
-	bool _inited{false};
+	bool _channel_initialized[DEFAULT_MAX_CHANNELS] {};
 
 };