From c860f15e6a541c72d901d928941912edb943883e Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sat, 15 Feb 2020 11:01:15 -0800
Subject: Fix checksum calculation

---
 src/main/java/org/traccar/protocol/GatorProtocolDecoder.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java b/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java
index cce23288a..087861635 100644
--- a/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java
@@ -68,7 +68,7 @@ public class GatorProtocolDecoder extends BaseProtocolDecoder {
             response.writeByte(checksum);
             response.writeByte(type);
             response.writeByte(0); // subtype
-            response.writeByte(Checksum.sum(response.nioBuffer(2, response.writerIndex())));
+            response.writeByte(Checksum.xor(response.nioBuffer(2, response.writerIndex())));
             response.writeByte(0x0D);
             channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
         }
-- 
cgit v1.2.3