diff --git a/radio/1.2/default/Sap.cpp b/radio/1.2/default/Sap.cpp
new file mode 100644
index 0000000..83efd30
--- /dev/null
+++ b/radio/1.2/default/Sap.cpp
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.1 (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-2.1
+ *
+ * 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 "Sap.h"
+
+namespace android {
+namespace hardware {
+namespace radio {
+namespace V1_2 {
+namespace implementation {
+
+// Methods from ::android::hardware::radio::V1_0::ISap follow.
+Return<void> Sap::setCallback(
+    const sp<::android::hardware::radio::V1_0::ISapCallback>& sapCallback) {
+    mSapCallback = sapCallback;
+    return Void();
+}
+
+Return<void> Sap::connectReq(int32_t /* token */, int32_t /* maxMsgSize */) {
+    // TODO implement
+    return Void();
+}
+
+Return<void> Sap::disconnectReq(int32_t /* token */) {
+    // TODO implement
+    return Void();
+}
+
+Return<void> Sap::apduReq(int32_t /* token */,
+                          ::android::hardware::radio::V1_0::SapApduType /* type */,
+                          const hidl_vec<uint8_t>& /* command */) {
+    // TODO implement
+    return Void();
+}
+
+Return<void> Sap::transferAtrReq(int32_t /* token */) {
+    // TODO implement
+    return Void();
+}
+
+Return<void> Sap::powerReq(int32_t /* token */, bool /* state */) {
+    // TODO implement
+    return Void();
+}
+
+Return<void> Sap::resetSimReq(int32_t /* token */) {
+    // TODO implement
+    return Void();
+}
+
+Return<void> Sap::transferCardReaderStatusReq(int32_t /* token */) {
+    // TODO implement
+    return Void();
+}
+
+Return<void> Sap::setTransferProtocolReq(
+    int32_t /* token */,
+    ::android::hardware::radio::V1_0::SapTransferProtocol /* transferProtocol */) {
+    // TODO implement
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace V1_2
+}  // namespace radio
+}  // namespace hardware
+}  // namespace android