Copyright: Move to SPDX-Identifier

Original copyright holders have been preserved, this patch moves the
copyright notice to the compact SPDX notation.

Change-Id: I910cbc8ee0127e380099e1fbb3e3fb7c0abd24a9
Signed-off-by: Alexander Hansen <alexander.hansen@9elements.com>
diff --git a/dbus/dbushelper.cpp b/dbus/dbushelper.cpp
index b29d0d6..014b8cb 100644
--- a/dbus/dbushelper.cpp
+++ b/dbus/dbushelper.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "config.h"
 
diff --git a/dbus/dbuspassive.cpp b/dbus/dbuspassive.cpp
index 6878d18..3cbc677 100644
--- a/dbus/dbuspassive.cpp
+++ b/dbus/dbuspassive.cpp
@@ -1,18 +1,6 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
+
 #include "config.h"
 
 #include "dbuspassive.hpp"
diff --git a/experiments/drive.cpp b/experiments/drive.cpp
index 687a36c..4511d2a 100644
--- a/experiments/drive.cpp
+++ b/experiments/drive.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "drive.hpp"
 
diff --git a/failsafeloggers/builder.cpp b/failsafeloggers/builder.cpp
index b773604..b632142 100644
--- a/failsafeloggers/builder.cpp
+++ b/failsafeloggers/builder.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "failsafeloggers/builder.hpp"
 
diff --git a/ipmi/dbus_mode.cpp b/ipmi/dbus_mode.cpp
index e2dfc50..4155658 100644
--- a/ipmi/dbus_mode.cpp
+++ b/ipmi/dbus_mode.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "dbus_mode.hpp"
 
diff --git a/ipmi/main_ipmi.cpp b/ipmi/main_ipmi.cpp
index 93eee63..0600832 100644
--- a/ipmi/main_ipmi.cpp
+++ b/ipmi/main_ipmi.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "dbus_mode.hpp"
 #include "manualcmds.hpp"
diff --git a/ipmi/manualcmds.cpp b/ipmi/manualcmds.cpp
index 60ecebf..aa9a213 100644
--- a/ipmi/manualcmds.cpp
+++ b/ipmi/manualcmds.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "manualcmds.hpp"
 
diff --git a/main.cpp b/main.cpp
index d50bfbd..c924123 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,18 +1,6 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
+
 #include "config.h"
 
 #include "buildjson/buildjson.hpp"
diff --git a/notimpl/readonly.cpp b/notimpl/readonly.cpp
index 30dca25..3bcbd17 100644
--- a/notimpl/readonly.cpp
+++ b/notimpl/readonly.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "readonly.hpp"
 
diff --git a/notimpl/writeonly.cpp b/notimpl/writeonly.cpp
index ef54cd5..17113ae 100644
--- a/notimpl/writeonly.cpp
+++ b/notimpl/writeonly.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "writeonly.hpp"
 
diff --git a/pid/builder.cpp b/pid/builder.cpp
index 7331705..6de7bcc 100644
--- a/pid/builder.cpp
+++ b/pid/builder.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "pid/builder.hpp"
 
diff --git a/pid/buildjson.cpp b/pid/buildjson.cpp
index e633890..8925e2e 100644
--- a/pid/buildjson.cpp
+++ b/pid/buildjson.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2019 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2019 Google Inc
 
 #include "pid/buildjson.hpp"
 
diff --git a/pid/ec/logging.cpp b/pid/ec/logging.cpp
index 0b8e7c9..d159d73 100644
--- a/pid/ec/logging.cpp
+++ b/pid/ec/logging.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2022 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2022 Google Inc
 
 #include "logging.hpp"
 
diff --git a/pid/ec/pid.cpp b/pid/ec/pid.cpp
index b6acb51..278fa22 100644
--- a/pid/ec/pid.cpp
+++ b/pid/ec/pid.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "pid.hpp"
 
diff --git a/pid/fancontroller.cpp b/pid/fancontroller.cpp
index 5598c4f..ecf405e 100644
--- a/pid/fancontroller.cpp
+++ b/pid/fancontroller.cpp
@@ -1,18 +1,6 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
+
 #include "config.h"
 
 #include "fancontroller.hpp"
diff --git a/pid/pidcontroller.cpp b/pid/pidcontroller.cpp
index adccfce..160928d 100644
--- a/pid/pidcontroller.cpp
+++ b/pid/pidcontroller.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "pidcontroller.hpp"
 
diff --git a/pid/pidloop.cpp b/pid/pidloop.cpp
index af0d24f..3576cac 100644
--- a/pid/pidloop.cpp
+++ b/pid/pidloop.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "pidloop.hpp"
 
diff --git a/pid/thermalcontroller.cpp b/pid/thermalcontroller.cpp
index b9ea1c2..0b58855 100644
--- a/pid/thermalcontroller.cpp
+++ b/pid/thermalcontroller.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "thermalcontroller.hpp"
 
diff --git a/pid/tuning.cpp b/pid/tuning.cpp
index ca18823..abfa684 100644
--- a/pid/tuning.cpp
+++ b/pid/tuning.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2019 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2019 Google Inc
 
 #include "tuning.hpp"
 
diff --git a/pid/util.cpp b/pid/util.cpp
index dbad60e..12faa3c 100644
--- a/pid/util.cpp
+++ b/pid/util.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "util.hpp"
 
diff --git a/pid/zone.cpp b/pid/zone.cpp
index 835b79e..98e61a1 100644
--- a/pid/zone.cpp
+++ b/pid/zone.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 /* Configuration. */
 #include "zone.hpp"
diff --git a/sensors/build_utils.cpp b/sensors/build_utils.cpp
index 04e8d05..1b5efb8 100644
--- a/sensors/build_utils.cpp
+++ b/sensors/build_utils.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "build_utils.hpp"
 
diff --git a/sensors/builder.cpp b/sensors/builder.cpp
index 636e734..640c0ca 100644
--- a/sensors/builder.cpp
+++ b/sensors/builder.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include <iostream>
 #include <map>
diff --git a/sensors/buildjson.cpp b/sensors/buildjson.cpp
index ed6e35e..23bb201 100644
--- a/sensors/buildjson.cpp
+++ b/sensors/buildjson.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2019 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2019 Google Inc
 
 #include "sensors/buildjson.hpp"
 
diff --git a/sensors/host.cpp b/sensors/host.cpp
index f388443..68f2834 100644
--- a/sensors/host.cpp
+++ b/sensors/host.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "host.hpp"
 
diff --git a/sensors/manager.cpp b/sensors/manager.cpp
index 1f81038..d5ec615 100644
--- a/sensors/manager.cpp
+++ b/sensors/manager.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 /* Configuration. */
 #include "sensors/manager.hpp"
diff --git a/sensors/pluggable.cpp b/sensors/pluggable.cpp
index 491152f..bd1e94c 100644
--- a/sensors/pluggable.cpp
+++ b/sensors/pluggable.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "pluggable.hpp"
 
diff --git a/sysfs/sysfsread.cpp b/sysfs/sysfsread.cpp
index d9ea915..a0e0779 100644
--- a/sysfs/sysfsread.cpp
+++ b/sysfs/sysfsread.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "sysfs/sysfsread.hpp"
 
diff --git a/sysfs/sysfswrite.cpp b/sysfs/sysfswrite.cpp
index 69ad815..40d5bd8 100644
--- a/sysfs/sysfswrite.cpp
+++ b/sysfs/sysfswrite.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "sysfswrite.hpp"
 
diff --git a/sysfs/util.cpp b/sysfs/util.cpp
index 307e3ab..dba33eb 100644
--- a/sysfs/util.cpp
+++ b/sysfs/util.cpp
@@ -1,18 +1,5 @@
-/**
- * Copyright 2017 Google Inc.
- *
- * 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.
- */
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Google Inc
 
 #include "util.hpp"