Define CAN bus HAL.
Bug: 135918744
Test: VTS (separate new change)
Change-Id: Ia4de5ee441834c7870e33481e982960a1593de28
diff --git a/automotive/can/1.0/ICloseHandle.hal b/automotive/can/1.0/ICloseHandle.hal
new file mode 100644
index 0000000..924c58b
--- /dev/null
+++ b/automotive/can/1.0/ICloseHandle.hal
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 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.
+ */
+package android.hardware.automotive.can@1.0;
+
+/**
+ * Represents a generic close handle to remove a callback that doesn't need
+ * active interface.
+ *
+ * When close() is called OR when the interface is released, the underlying
+ * resources must be freed.
+ */
+interface ICloseHandle {
+ /**
+ * Closes the handle.
+ *
+ * The call must not fail and must be issued by the client at most once.
+ * Otherwise, the server must ignore subsequent calls.
+ */
+ close();
+};