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-rw-r--r--docs/feature_bluetooth.md5
-rw-r--r--tmk_core/common.mk10
2 files changed, 11 insertions, 4 deletions
diff --git a/docs/feature_bluetooth.md b/docs/feature_bluetooth.md
index 7b450b1ac8..08e5f24ac5 100644
--- a/docs/feature_bluetooth.md
+++ b/docs/feature_bluetooth.md
@@ -26,7 +26,10 @@ A Bluefruit UART friend can be converted to an SPI friend, however this [require
<!-- FIXME: Document bluetooth support more completely. -->
## Bluetooth Rules.mk Options
-Use only one of these
+
+The currently supported Bluetooth chipsets do not support [N-Key Rollover (NKRO)](reference_glossary.md#n-key-rollover-nkro), so `rules.mk` must contain `NKRO_ENABLE = no`.
+
+Use only one of these to enable Bluetooth:
* BLUETOOTH_ENABLE = yes (Legacy Option)
* BLUETOOTH = RN42
* BLUETOOTH = AdafruitBLE
diff --git a/tmk_core/common.mk b/tmk_core/common.mk
index c60a1c4052..fdf2aa0972 100644
--- a/tmk_core/common.mk
+++ b/tmk_core/common.mk
@@ -99,11 +99,15 @@ ifeq ($(strip $(COMMAND_ENABLE)), yes)
endif
ifeq ($(strip $(NKRO_ENABLE)), yes)
- ifneq ($(PROTOCOL),VUSB)
+ ifeq ($(PROTOCOL), VUSB)
+ $(info NKRO is not currently supported on V-USB, and has been disabled.)
+ else ifeq ($(strip $(BLUETOOTH_ENABLE)), yes)
+ $(info NKRO is not currently supported with Bluetooth, and has been disabled.)
+ else ifneq ($(BLUETOOTH),)
+ $(info NKRO is not currently supported with Bluetooth, and has been disabled.)
+ else
TMK_COMMON_DEFS += -DNKRO_ENABLE
SHARED_EP_ENABLE = yes
- else
- $(info NKRO is not currently supported on V-USB, and has been disabled.)
endif
endif