Add lazy service target to the light HAL

This change allows a device to include the lazy service implementation,
which will allow the HAL to exit when it is not in use.

Test: Manually observe brightness slider behavior
Change-Id: I7f8f747ebe6e183e1aaf1406852e6e26a97aee35

1 files changed, 25 insertions, 0 deletions

diff --git a/light/2.0/default/serviceLazy.cpp b/light/2.0/default/serviceLazy.cpp
new file mode 100644
index 0000000000..5324f465b3
--- /dev/null
+++ b/light/2.0/default/serviceLazy.cpp
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android/hardware/light/2.0/ILight.h>
+#include <hidl/LegacySupport.h>
+
+using android::hardware::defaultLazyPassthroughServiceImplementation;
+using android::hardware::light::V2_0::ILight;
+
+int main() {
+    return defaultLazyPassthroughServiceImplementation<ILight>();
+}