1 files changed, 13 insertions, 0 deletions

diff --git a/tmk_core/common.mk b/tmk_core/common.mk
index 6c8cf6935..fa907b47b 100644
--- a/tmk_core/common.mk
+++ b/tmk_core/common.mk
@@ -106,6 +106,19 @@ ifeq ($(strip $(NO_USB_STARTUP_CHECK)), yes)
     TMK_COMMON_DEFS += -DNO_USB_STARTUP_CHECK
 endif
 
+ifeq ($(strip $(DIGITIZER_SHARED_EP)), yes)
+    TMK_COMMON_DEFS += -DDIGITIZER_SHARED_EP
+    SHARED_EP_ENABLE = yes
+endif
+
+ifeq ($(strip $(DIGITIZER_ENABLE)), yes)
+    TMK_COMMON_DEFS += -DDIGITIZER_ENABLE
+    ifeq ($(strip $(SHARED_EP_ENABLE)), yes)
+        TMK_COMMON_DEFS += -DDIGITIZER_SHARED_EP
+        SHARED_EP_ENABLE = yes
+    endif
+endif
+
 ifeq ($(strip $(SHARED_EP_ENABLE)), yes)
     TMK_COMMON_DEFS += -DSHARED_EP_ENABLE
 endif