diff --git a/cros_gralloc/cros_gralloc_types.h b/cros_gralloc/cros_gralloc_types.h
new file mode 100644
index 0000000..b1938c8
--- /dev/null
+++ b/cros_gralloc/cros_gralloc_types.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2017 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef CROS_GRALLOC_TYPES_H
+#define CROS_GRALLOC_TYPES_H
+
+typedef enum {
+	CROS_GRALLOC_ERROR_NONE = 0,
+	CROS_GRALLOC_ERROR_BAD_DESCRIPTOR = 1,
+	CROS_GRALLOC_ERROR_BAD_HANDLE = 2,
+	CROS_GRALLOC_ERROR_BAD_VALUE = 3,
+	CROS_GRALLOC_ERROR_NOT_SHARED = 4,
+	CROS_GRALLOC_ERROR_NO_RESOURCES = 5,
+	CROS_GRALLOC_ERROR_UNDEFINED = 6,
+	CROS_GRALLOC_ERROR_UNSUPPORTED = 7,
+} cros_gralloc_error_t;
+
+struct cros_gralloc_buffer_descriptor {
+	uint32_t width;
+	uint32_t height;
+	uint32_t consumer_usage;
+	uint32_t producer_usage;
+	uint32_t droid_format;
+	uint32_t drm_format;
+	uint64_t drv_usage;
+};
+
+#endif