Require consistent getSensorsList
Require that the values returned from getSensorsList do not change
before the entire system reboots. The values must be stable even
across Sensors HAL restarts. This allows for the framework to
automatically re-establish connections if the Sensors HAL crashes.
Bug: 111070257
Test: Compiles
Change-Id: I0e4b7d6ef8f89f6780c6a14d67465fd3692cd482
diff --git a/sensors/2.0/ISensors.hal b/sensors/2.0/ISensors.hal
index 2a57251..939bf73 100644
--- a/sensors/2.0/ISensors.hal
+++ b/sensors/2.0/ISensors.hal
@@ -27,6 +27,13 @@
interface ISensors {
/**
* Enumerate all available (static) sensors.
+ *
+ * The SensorInfo for each sensor returned by getSensorsList must be stable
+ * from the initial call to getSensorsList after a device boot until the
+ * entire system restarts. The SensorInfo for each sensor must not change
+ * between subsequent calls to getSensorsList, even across restarts of the
+ * HAL and its dependencies (for example, the sensor handle for a given
+ * sensor must not change across HAL restarts).
*/
getSensorsList() generates (vec<SensorInfo> list);