diff --git a/ResponseCode.cpp b/ResponseCode.cpp
new file mode 100644
index 0000000..d0410b6
--- /dev/null
+++ b/ResponseCode.cpp
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2008 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 <stdio.h>
+#include <errno.h>
+#include <string.h>
+
+#define LOG_TAG "Vold"
+
+#include <cutils/log.h>
+
+#include "ResponseCode.h"
+
+int ResponseCode::convertFromErrno() {
+   if (errno == ENODEV) {
+        return(ResponseCode::OpFailedNoMedia);
+    } else if (errno == ENODATA) {
+        return(ResponseCode::OpFailedMediaBlank);
+    } else if (errno == EIO) {
+        return(ResponseCode::OpFailedMediaCorrupt);
+    } else if (errno == EBUSY) {
+        return(ResponseCode::OpFailedStorageBusy);
+    }
+
+    LOGW("Returning OperationFailed - no handler for errno %d", errno);
+    return(ResponseCode::OperationFailed);
+}