From 4d91081046f75efc701e0fda7787daebe982c72c Mon Sep 17 00:00:00 2001
From: Lior Halphon <LIJI32@gmail.com>
Date: Sat, 30 May 2020 17:58:02 +0300
Subject: [PATCH] Do not send LED updates if nothing changed

---
 JoyKit/JOYController.m | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/JoyKit/JOYController.m b/JoyKit/JOYController.m
index 015737e..12f0d39 100644
--- a/JoyKit/JOYController.m
+++ b/JoyKit/JOYController.m
@@ -164,6 +164,8 @@ typedef union {
     
     // Used when creating inputs
     JOYElement *_previousAxisElement;
+    
+    uint8_t _playerLEDs;
 
 }
 
@@ -342,6 +344,7 @@ typedef union {
     _logicallyConnected = true;
     _device = (IOHIDDeviceRef)CFRetain(device);
     _serialSuffix = suffix;
+    _playerLEDs = -1;
 
     IOHIDDeviceRegisterInputValueCallback(device, HIDInput, (void *)self);
     IOHIDDeviceScheduleWithRunLoop(device, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
@@ -709,6 +712,10 @@ typedef union {
 - (void)setPlayerLEDs:(uint8_t)mask
 {
     mask &= 0xF;
+    if (mask == _playerLEDs) {
+        return;
+    }
+    _playerLEDs = mask;
     if (_isSwitch) {
         _lastVendorSpecificOutput.switchPacket.reportID = 0x1; // Rumble and LEDs
         _lastVendorSpecificOutput.switchPacket.sequence++;