diff --git a/include/input/Input.h b/include/input/Input.h
index 7cc595a..263ade4 100644
--- a/include/input/Input.h
+++ b/include/input/Input.h
@@ -203,6 +203,10 @@
 
 const char* inputEventTypeToString(int32_t type);
 
+std::string inputEventSourceToString(int32_t source);
+
+bool isFromSource(uint32_t source, uint32_t test);
+
 /*
  * Flags that flow alongside events in the input dispatch system to help with certain
  * policy decisions such as waking from device sleep.