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-rw-r--r--tmk_core/common/action_layer.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/tmk_core/common/action_layer.h b/tmk_core/common/action_layer.h
index 7fa30c86d6..1ecc0974da 100644
--- a/tmk_core/common/action_layer.h
+++ b/tmk_core/common/action_layer.h
@@ -23,10 +23,13 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#if defined(LAYER_STATE_8BIT) || ( defined(DYNAMIC_KEYMAP_ENABLE) && DYNAMIC_KEYMAP_LAYER_COUNT >= 8 )
typedef uint8_t layer_state_t;
+#define get_highest_layer(state) biton8(state)
#elif defined(LAYER_STATE_16BIT)
typedef uint16_t layer_state_t;
+#define get_highest_layer(state) biton16(state)
#else
typedef uint32_t layer_state_t;
+#define get_highest_layer(state) biton32(state)
#endif