1 files changed, 2 insertions, 0 deletions

diff --git a/tmk_core/common/keyboard.h b/tmk_core/common/keyboard.h
index 71e594a89..ea2f336e9 100644
--- a/tmk_core/common/keyboard.h
+++ b/tmk_core/common/keyboard.h
@@ -67,6 +67,8 @@ void keyboard_init(void);
 void keyboard_task(void);
 /* it runs when host LED status is updated */
 void keyboard_set_leds(uint8_t leds);
+/* it runs whenever code has to behave differently on a slave */
+bool is_keyboard_master(void);
 
 #ifdef __cplusplus
 }