b/12068020 add nonce to InputDeviceDescriptor. Do not merge
This is a cherry-pick of https://googleplex-android-review.git.corp.google.com/#/c/401795/
Adds a nonce field to allow generation of unique descriptors for
input devices.
Change-Id: Ie82bfb728bea95792b3b138dd3974f8b0aff63e0
diff --git a/include/input/InputDevice.h b/include/input/InputDevice.h
index 1419b45..adf9fb9 100644
--- a/include/input/InputDevice.h
+++ b/include/input/InputDevice.h
@@ -46,6 +46,11 @@
// Ideally, the way this value is computed should not change between Android releases
// because that would invalidate persistent settings that rely on it.
String8 descriptor;
+
+ // A value added to uniquely identify a device in the absence of a unique id. This
+ // is intended to be a minimum way to distinguish from other active devices and may
+ // reuse values that are not associated with an input anymore.
+ uint16_t nonce;
};
/*