diff --git a/libs/input/Input.cpp b/libs/input/Input.cpp
index c796439..c356c2e 100644
--- a/libs/input/Input.cpp
+++ b/libs/input/Input.cpp
@@ -343,6 +343,28 @@
     return "UNKNOWN";
 }
 
+std::ostream& operator<<(std::ostream& out, const KeyEvent& event) {
+    out << "KeyEvent { action=" << KeyEvent::actionToString(event.getAction());
+
+    out << ", keycode=" << event.getKeyCode() << "(" << KeyEvent::getLabel(event.getKeyCode())
+        << ")";
+
+    if (event.getMetaState() != 0) {
+        out << ", metaState=" << event.getMetaState();
+    }
+
+    out << ", eventTime=" << event.getEventTime();
+    out << ", downTime=" << event.getDownTime();
+    out << ", flags=" << std::hex << event.getFlags() << std::dec;
+    out << ", repeatCount=" << event.getRepeatCount();
+    out << ", deviceId=" << event.getDeviceId();
+    out << ", source=" << inputEventSourceToString(event.getSource());
+    out << ", displayId=" << event.getDisplayId();
+    out << ", eventId=" << event.getId();
+    out << "}";
+    return out;
+}
+
 // --- PointerCoords ---
 
 float PointerCoords::getAxisValue(int32_t axis) const {
diff --git a/libs/input/android/os/InputEventInjectionResult.aidl b/libs/input/android/os/InputEventInjectionResult.aidl
index 3bc7068..e80c2a5 100644
--- a/libs/input/android/os/InputEventInjectionResult.aidl
+++ b/libs/input/android/os/InputEventInjectionResult.aidl
@@ -37,4 +37,7 @@
 
     /* Injection failed due to a timeout. */
     TIMED_OUT = 3,
+
+    ftl_first=PENDING,
+    ftl_last=TIMED_OUT,
 }