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diff --git a/ubi-utils/old-tools/src/ubimirror.h b/ubi-utils/old-tools/src/ubimirror.h
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+#ifndef __UBIMIRROR_H__
+#define __UBIMIRROR_H__
+/*
+ * Copyright (c) International Business Machines Corp., 2006
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Author: Oliver Lohmann
+ *
+ * An utility to mirror UBI volumes.
+ */
+
+#include <stdint.h>
+
+/**
+ * @def EUBIMIRROR_SRC_EQ_DST
+ *	@brief Given source volume is also in the set of destination volumes.
+ */
+#define EUBIMIRROR_SRC_EQ_DST	20
+
+/**
+ * @def EUBIMIRROR_NO_SRC
+ *	@brief The given source volume does not exist.
+ */
+#define EUBIMIRROR_NO_SRC	21
+
+/**
+ * @def EUBIMIRROR_NO_DST
+ *	@brief One of the given destination volumes does not exist.
+ */
+#define EUBIMIRROR_NO_DST	22
+
+/**
+ * @brief Mirrors UBI devices from a source device (specified by seqnum)
+ *	  to n target devices.
+ * @param devno Device number used by the UBI operations.
+ * @param seqnum An index into ids (defines the src_id).
+ * @param ids An array of ids.
+ * @param ids_size The number of entries in the ids array.
+ * @param err_buf A buffer to store verbose error messages.
+ * @param err_buf_size The size of the error buffer.
+ *
+ * @note A seqnum of value < 0 defaults to a seqnum of 0.
+ * @note A seqnum exceeding the range of ids_size defaults to 0.
+ * @note An empty ids list results in a empty stmt.
+ * @pre	The UBI volume which shall be used as source volume exists.
+ * @pre	The UBI volumes which are defined as destination volumes exist.
+ * @post The content of the UBI volume which was defined as source volume
+ *	 equals the content of the volumes which were defined as destination.
+ */
+int ubimirror(uint32_t devno, int seqnum, uint32_t* ids, ssize_t ids_size,
+	      char *err_buf, size_t err_buf_size);
+
+#endif /* __UBIMIRROR_H__ */