From 9f7d9eda2524d0d89a370adca5fa47f1fe57d03d Mon Sep 17 00:00:00 2001
From: Hynek Texl <h.texl@seznam.cz>
Date: Fri, 17 Jan 2025 21:56:37 +0100
Subject: [PATCH] - Critical bug fixed in setLightSensorGain() which caused
 invalid Light sensor  GAIN settings and light meter stops responding. - Next
 bug fixed in getProximity() return value must be 11bits. Encoding Of final
 value was incorrect.

---
 src/SensorLTR553.hpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/SensorLTR553.hpp b/src/SensorLTR553.hpp
index 58c465a..19b39d6 100644
--- a/src/SensorLTR553.hpp
+++ b/src/SensorLTR553.hpp
@@ -207,7 +207,7 @@ class SensorLTR553 :
 
     void setLightSensorGain(LightSensorGain gain)
     {
-        writeRegister(LTR553_REG_ALS_CONTR, 0xE3, gain);
+        writeRegister(LTR553_REG_ALS_CONTR, 0xE3, gain<<2);
     }
 
     int getLightSensor(uint8_t ch)
@@ -275,7 +275,8 @@ class SensorLTR553 :
         if (saturated) {
             *saturated = buffer[1] & 0x80;
         }
-        return buffer[0] | (buffer[1] & 0x03);
+        int high = buffer[1] & 0x07;
+        return (high << 8) | buffer[0];
     }
 
     void setPsLedPulsePeriod(PsLedPeriod period)