diff --git a/power/1.1/IPower.hal b/power/1.1/IPower.hal
new file mode 100644
index 0000000..0c0f211
--- /dev/null
+++ b/power/1.1/IPower.hal
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2016 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.power@1.1;
+
+import android.hardware.power@1.0;
+
+/**
+ * Interface to collect subsystem level sleep information
+ */
+interface IPower extends android.hardware.power@1.0::IPower {
+
+    /**
+     * Subsystem-level sleep state stats:
+     * Report cumulative info on the statistics on subsystem-level sleep states
+     * since boot.
+     *
+     * @return subsystems supported on this device and their sleep states
+     * @return retval SUCCESS on success or FILESYSTEM_ERROR on filesystem
+     * nodes access error.
+     */
+    getSubsystemLowPowerStats()
+            generates (vec<PowerStateSubsystem> subsystems, Status retval);
+};