Initial commit
diff --git a/rmi4update/updateutil.h b/rmi4update/updateutil.h
new file mode 100644
index 0000000..c8beadd
--- /dev/null
+++ b/rmi4update/updateutil.h
@@ -0,0 +1,43 @@
+#ifndef _UPDATEUTIL_H_
+#define _UPDATEUTIL_H_
+
+enum update_error {
+ UPDATE_SUCCESS = 0,
+ UPDATE_FAIL,
+ UPDATE_FAIL_TIMEOUT,
+ UPDATE_FAIL_VERIFY_IMAGE,
+ UPDATE_FAIL_VERIFY_CHECKSUM,
+ UPDATE_FAIL_VERIFY_FIRMWARE_SIZE,
+ UPDATE_FAIL_VERIFY_CONFIG_SIZE,
+ UPDATE_FAIL_UNSUPPORTED_IMAGE_VERSION,
+ UPDATE_FAIL_NO_FUNCTION_01,
+ UPDATE_FAIL_NO_FUNCTION_34,
+ UPDATE_FAIL_QUERY_BASIC_PROPERTIES,
+ UPDATE_FAIL_READ_F34_QUERIES,
+ UPDATE_FAIL_READ_BOOTLOADER_ID,
+ UPDATE_FAIL_READ_F34_CONTROLS,
+ UPDATE_FAIL_WRITE_BOOTLOADER_ID,
+ UPDATE_FAIL_ENABLE_FLASH_PROGRAMMING,
+ UPDATE_FAIL_NOT_IN_IDLE_STATE,
+ UPDATE_FAIL_PROGRAMMING_NOT_ENABLED,
+ UPDATE_FAIL_SCAN_PDT,
+ UPDATE_FAIL_READ_DEVICE_STATUS,
+ UPDATE_FAIL_DEVICE_NOT_IN_BOOTLOADER,
+ UPDATE_FAIL_READ_F01_CONTROL_0,
+ UPDATE_FAIL_WRITE_F01_CONTROL_0,
+ UPDATE_FAIL_WRITE_INITIAL_ZEROS,
+ UPDATE_FAIL_WRITE_BLOCK,
+ UPDATE_FAIL_WRITE_FLASH_COMMAND,
+ UPDATE_FAIL_TIMEOUT_WAITING_FOR_IDLE,
+ UPDATE_FAIL_ERASE_ALL,
+ UPDATE_FAIL_FIRMWARE_IMAGE_IS_OLDER,
+ UPDATE_FAIL_INVALID_PARAMETER,
+ UPDATE_FAIL_OPEN_FIRMWARE_IMAGE,
+};
+
+const char * update_err_to_string(int err);
+
+unsigned long extract_long(const unsigned char *data);
+unsigned short extract_short(const unsigned char *data);
+
+#endif // _UPDATEUTIL_H_
\ No newline at end of file