From f241bc0c7799ef701ec6fbe467b189232f7a2a40 Mon Sep 17 00:00:00 2001
From: Andrey Klimov <anklimov@gmail.com>
Date: Fri, 7 May 2021 21:39:11 +0300
Subject: [PATCH] modbus mask type == 3 - swap high and low bytes

---
 lighthub/item.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lighthub/item.cpp b/lighthub/item.cpp
index b20b894..7aa0e03 100644
--- a/lighthub/item.cpp
+++ b/lighthub/item.cpp
@@ -1509,6 +1509,7 @@ int Item::modbusDimmerSet(int addr, uint16_t _reg, int _regType, int _mask, uint
 
     modbusSerial.begin(MODBUS_SERIAL_BAUD, dimPar);
     node.begin(addr, modbusSerial);
+    uint8_t t;
     switch (_mask) {
        case 1:
         value <<= 8;
@@ -1517,6 +1518,15 @@ int Item::modbusDimmerSet(int addr, uint16_t _reg, int _regType, int _mask, uint
        case 0:
         value &= 0xff;
         value |= (0xff00);
+        break;
+       case 2:
+        break;
+       case 3: //Swap high and low bytes
+        t = (value & 0xff00) >> 8;
+        value <<=8;
+        value |= t;
+
+
     }
     debugSerial<<addr<<F("=>")<<_HEX(_reg)<<F("(T:")<<_regType<<F("):")<<_HEX(value)<<endl;
     switch (_regType) {