diff --git a/adbbu/twrpback.hpp b/adbbu/twrpback.hpp
new file mode 100644
index 0000000..752d35e
--- /dev/null
+++ b/adbbu/twrpback.hpp
@@ -0,0 +1,49 @@
+/*
+		Copyright 2013 to 2016 TeamWin
+		TWRP is free software: you can redistribute it and/or modify
+		it under the terms of the GNU General Public License as published by
+		the Free Software Foundation, either version 3 of the License, or
+		(at your option) any later version.
+
+		TWRP is distributed in the hope that it will be useful,
+		but WITHOUT ANY WARRANTY; without even the implied warranty of
+		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+		GNU General Public License for more details.
+
+		You should have received a copy of the GNU General Public License
+		along with TWRP.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <fstream>
+
+#include "../orscmd/orscmd.h"
+#include "../variables.h"
+#include "../twcommon.h"
+
+class twrpback {
+public:
+	int adbd_fd;                                                             // adbd data stream
+
+	twrpback(void);
+	virtual ~twrpback(void);
+	int backup(std::string command);                                         // adb backup stream
+	int restore(void);                                                       // adb restore stream
+	void adblogwrite(std::string writemsg);                                  // adb debugging log function
+	void close_backup_fds();                                                 // close backup resources
+	void close_restore_fds();                                                // close restore resources
+
+private:
+	int read_fd;                                                             // ors input fd
+	int write_fd;                                                            // ors operation fd
+	int ors_fd;                                                              // ors output fd
+	int adb_control_twrp_fd;                                                 // fd for bu to twrp communication
+	int adb_control_bu_fd;                                                   // fd for twrp to bu communication
+	int adb_read_fd;                                                         // adb read data stream
+	int adb_write_fd;                                                        // adb write data stream
+	bool firstPart;                                                          // first partition in the stream
+	FILE *adbd_fp;                                                           // file pointer for adb stream
+	char cmd[512];                                                           // store result of commands
+	char operation[512];                                                     // operation to send to ors
+	std::ofstream adblogfile;                                                // adb stream log file
+	void adbloginit(void);                                                   // setup adb log stream file
+};