From d369bfb83a74d94ed0fbb13f8ee3a8a1146da770 Mon Sep 17 00:00:00 2001
From: Priyadi Iman Nurcahyo <priyadi@priyadi.net>
Date: Wed, 15 Feb 2017 05:02:15 +0700
Subject: [PATCH] Add layer_state_set_kb hook

---
 tmk_core/common/action_layer.c | 6 ++++++
 tmk_core/common/action_layer.h | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/tmk_core/common/action_layer.c b/tmk_core/common/action_layer.c
index a3c75796427..3363a2e5327 100644
--- a/tmk_core/common/action_layer.c
+++ b/tmk_core/common/action_layer.c
@@ -57,8 +57,14 @@ void default_layer_xor(uint32_t state)
  */
 uint32_t layer_state = 0;
 
+__attribute__((weak))
+uint32_t layer_state_set_kb(uint32_t state) {
+    return state;
+}
+
 static void layer_state_set(uint32_t state)
 {
+    state = layer_state_set_kb(state);
     dprint("layer_state: ");
     layer_debug(); dprint(" to ");
     layer_state = state;
diff --git a/tmk_core/common/action_layer.h b/tmk_core/common/action_layer.h
index 025cf5420f7..fc714700da5 100644
--- a/tmk_core/common/action_layer.h
+++ b/tmk_core/common/action_layer.h
@@ -69,6 +69,8 @@ void layer_xor(uint32_t state);
 #define layer_xor(state)
 #define layer_debug()
 
+__attribute__((weak))
+void layer_state_set_kb(uint32_t oldstate, uint32_t newstate);
 #endif
 
 /* pressed actions cache */