From d9e113f0e0feac1a801f8339d2f907302bd432c5 Mon Sep 17 00:00:00 2001 From: RoboErik Date: Thu, 19 Dec 2013 11:54:29 -0800 Subject: [PATCH] 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 --- include/input/InputDevice.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/input/InputDevice.h b/include/input/InputDevice.h index 1419b451f..adf9fb917 100644 --- a/include/input/InputDevice.h +++ b/include/input/InputDevice.h @@ -46,6 +46,11 @@ struct InputDeviceIdentifier { // 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; }; /*