diff --git a/include/input/KeyLayoutMap.h b/include/input/KeyLayoutMap.h
index 1da78aa..d36d28c 100644
--- a/include/input/KeyLayoutMap.h
+++ b/include/input/KeyLayoutMap.h
@@ -73,6 +73,7 @@
             int32_t* outKeyCode, uint32_t* outFlags) const;
     std::vector<int32_t> findScanCodesForKey(int32_t keyCode) const;
     std::optional<int32_t> findScanCodeForLed(int32_t ledCode) const;
+    std::vector<int32_t> findUsageCodesForKey(int32_t keyCode) const;
     std::optional<int32_t> findUsageCodeForLed(int32_t ledCode) const;
 
     std::optional<AxisInfo> mapAxis(int32_t scanCode) const;