diff --git a/RGBController/RGBController.cpp b/RGBController/RGBController.cpp
index ce57a19b..b6f92e4d 100644
--- a/RGBController/RGBController.cpp
+++ b/RGBController/RGBController.cpp
@@ -2132,12 +2132,18 @@ void RGBController::DeviceCallThreadFunction()
         {
             if(flags & CONTROLLER_FLAG_RESET_BEFORE_UPDATE)
             {
-                AccessMutex.lock_shared();
                 CallFlag_UpdateLEDs = false;
-                DeviceMutex.lock();
-                DeviceUpdateLEDs(colors);
-                DeviceMutex.unlock();
+            }
+
+            if(flags & CONTROLLER_FLAG_SUPPORTS_PASSING_COLORS_REFERENCE)
+            {
+                AccessMutex.lock_shared();
+                std::vector<RGBController> update_colors = colors;
                 AccessMutex.unlock_shared();
+
+                DeviceMutex.lock();
+                DeviceUpdateLEDs(update_colors);
+                DeviceMutex.unlock();
             }
             else
             {
@@ -2145,9 +2151,13 @@ void RGBController::DeviceCallThreadFunction()
                 DeviceMutex.lock();
                 DeviceUpdateLEDs(colors);
                 DeviceMutex.unlock();
-                CallFlag_UpdateLEDs = false;
                 AccessMutex.unlock_shared();
             }
+
+            if(!(flags & CONTROLLER_FLAG_RESET_BEFORE_UPDATE)))
+            {
+                CallFlag_UpdateLEDs = false;
+            }
         }
         else
         {
diff --git a/RGBController/RGBControllerInterface.h b/RGBController/RGBControllerInterface.h
index 0846f093..dabfeae4 100644
--- a/RGBController/RGBControllerInterface.h
+++ b/RGBController/RGBControllerInterface.h
@@ -225,6 +225,8 @@ enum
 
     CONTROLLER_FLAG_RESET_BEFORE_UPDATE                     = (1 << 8), /* Device resets update flag before                 */
                                                                         /* calling update function                          */
+    CONTROLLER_FLAG_SUPPORTS_PASSING_COLORS_REFERENCE       = (1 << 9), /* Device supports passing arbitrary colors data to */
+                                                                        /* DeviceUpdateLEDs()                               */
 
     CONTROLLER_FLAG_MANUALLY_CONFIGURABLE_NAME              = (1 << 16),/* Device name is manually configurable             */
     CONTROLLER_FLAG_MANUALLY_CONFIGURABLE_DEVICE_SPECIFIC   = (1 << 17),/* Device dev-specific cfg manually configurable    */