From e2d8866392cc020585fe77f2f584bc86e4cd2ff4 Mon Sep 17 00:00:00 2001
From: Nate Soares <nate@so8r.es>
Date: Tue, 9 Jan 2018 06:11:50 -0800
Subject: [PATCH] added Key_LEDEffectPrevious

---
 src/Kaleidoscope-LEDControl.cpp | 8 ++++++--
 src/Kaleidoscope-LEDControl.h   | 1 +
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/Kaleidoscope-LEDControl.cpp b/src/Kaleidoscope-LEDControl.cpp
index 21cbfca6..b7855c57 100644
--- a/src/Kaleidoscope-LEDControl.cpp
+++ b/src/Kaleidoscope-LEDControl.cpp
@@ -130,8 +130,12 @@ Key LEDControl::eventHandler(Key mappedKey, byte row, byte col, uint8_t keyState
   if (mappedKey.flags != (SYNTHETIC | IS_INTERNAL | LED_TOGGLE))
     return mappedKey;
 
-  if (keyToggledOn(keyState))
-    next_mode();
+  if (keyToggledOn(keyState)) {
+    if (mappedKey == Key_LEDEffectNext)
+      next_mode();
+    else
+      prev_mode();
+  }
 
   return Key_NoKey;
 }
diff --git a/src/Kaleidoscope-LEDControl.h b/src/Kaleidoscope-LEDControl.h
index dcaf6fb9..a0f1327d 100644
--- a/src/Kaleidoscope-LEDControl.h
+++ b/src/Kaleidoscope-LEDControl.h
@@ -7,6 +7,7 @@
 #define LED_TOGGLE   B00000001  // Synthetic, internal
 
 #define Key_LEDEffectNext (Key) { 0,  KEY_FLAGS | SYNTHETIC | IS_INTERNAL | LED_TOGGLE }
+#define Key_LEDEffectPrevious (Key) { 1,  KEY_FLAGS | SYNTHETIC | IS_INTERNAL | LED_TOGGLE }
 
 namespace kaleidoscope {
 /** Base class for LED modes.