From: nondescriptpointer <public@nondescriptpointer.com>
Date: Tue, 21 Jul 2026 00:00:00 +0000
Subject: [PATCH] libipa: Add camera sensor helper for OV13B10

The OV13B10 (ultra-wide sensor on the Fairphone 6 / milos) needs a
CameraSensorHelper so the software ISP AGC can map the analogue gain
register code to a real gain multiplier. Without it libcamera logs
"IPASoft: Failed to create camera sensor helper for ov13b10" and
auto-exposure/AWB do not converge. Like the other recent OmniVision
sensors the analogue gain is linear with 0x80 (128) == 1x.
---
 src/ipa/libipa/camera_sensor_helper.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

--- a/src/ipa/libipa/camera_sensor_helper.cpp
+++ b/src/ipa/libipa/camera_sensor_helper.cpp
@@ -827,6 +827,16 @@
 };
 REGISTER_CAMERA_SENSOR_HELPER("ov13858", CameraSensorHelperOv13858)
 
+class CameraSensorHelperOv13b10 : public CameraSensorHelper
+{
+public:
+	CameraSensorHelperOv13b10()
+	{
+		gain_ = AnalogueGainLinear{ 1, 0, 0, 128 };
+	}
+};
+REGISTER_CAMERA_SENSOR_HELPER("ov13b10", CameraSensorHelperOv13b10)
+
 class CameraSensorHelperVd55g1 : public CameraSensorHelper
 {
 public: