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diff --git a/ubi-utils/src/libubi/libubi_int.h b/ubi-utils/src/libubi/libubi_int.h
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+++ b/ubi-utils/src/libubi/libubi_int.h
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+#ifndef __UBI_INT_H__
+#define __UBI_INT_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.
+ */
+
+/*
+ * UBI (Unsorted Block Images) library.
+ *
+ * Author: Artem B. Bityutskiy
+ */
+
+/*
+ * Enable/disable UBI library debugging messages.
+ */
+#undef UBILIB_DEBUG
+
+/*
+ * UBI library error message.
+ */
+#define ubi_err(fmt, ...) do {						\
+		fprintf(stderr, "UBI Library Error at %s: ", __func__); \
+		fprintf(stderr, fmt, ##__VA_ARGS__);			\
+		fprintf(stderr, "\n");					\
+	} while(0)
+
+#ifdef UBILIB_DEBUG
+#define ubi_dbg(fmt, ...) do {						\
+		fprintf(stderr, "UBI Debug: %s: ", __func__);		\
+		fprintf(stderr, fmt, ##__VA_ARGS__);			\
+		fprintf(stderr, "\n");					\
+	} while(0)
+
+#else
+#define ubi_dbg(fmt, ...)
+#endif
+
+/**
+ * SYSFS Entries.
+ *
+ * @def UBI_ROOT
+ *	@brief Name of the root UBI directory in sysfs.
+ *
+ * @def UBI_NLEN_MAX
+ *	@brief Name of syfs file containing the maximum UBI volume name length.
+ *
+ * @def UBI_VERSION
+ *      @brief Name of sysfs file containing UBI version.
+ *
+ * @def UBI_WEAR
+ *	@brief Name of sysfs file containing wear level of an UBI device.
+ *
+ * @def UBI_VOL_COUNT
+ *	@brief Name of sysfs file contaning the of volume on an UBI device
+ *
+ * @def UBI_TOT_EBS
+ *	@brief Name of sysfs file contaning the total number of
+ *	eraseblocks on an UBI device.
+ *
+ * @def UBI_AVAIL_EBS
+ *	@brief Name of sysfs file contaning the number of unused eraseblocks on
+ *	an UBI device.
+ *
+ * @def UBI_EB_SIZE
+ *	@brief Name of sysfs file containing size of UBI eraseblocks.
+ *
+ * @def UBI_NUMS
+ *      @brief Name of sysfs file containing major and minor numbers
+ *      of an UBI device or an UBI volume device.
+ *
+ * @def UBI_VBYTES
+ *	@brief Name of sysfs file containing size of an UBI volume device in
+ *	bytes.
+ *
+ * @def UBI_VEBS
+ *	@brief Name of sysfs file containing size of an UBI volume device in
+ *	eraseblocks.
+ *
+ * @def UBI_VTYPE
+ *	@brief Name of sysfs file containing type of an UBI volume device.
+ *
+ * @def UBI_VNAME
+ *	@brief Name of sysfs file containing name of an UBI volume device.
+ **/
+#define UBI_ROOT	"ubi"
+#define UBI_NLEN_MAX	"volume_name_max"
+#define UBI_VERSION	"version"
+#define UBI_WEAR	"wear"
+#define UBI_VOL_COUNT	"volumes_count"
+#define UBI_TOT_EBS	"total_eraseblocks"
+#define UBI_AVAIL_EBS	"avail_eraseblocks"
+#define UBI_EB_SIZE	"eraseblock_size"
+#define UBI_NUMS	"dev"
+#define UBI_VBYTES	"bytes"
+#define UBI_VEBS	"eraseblocks"
+#define UBI_VTYPE	"type"
+#define UBI_VNAME	"name"
+
+#define UBI_CDEV_PATH	"/dev/ubi%d"
+#define UBI_VOL_CDEV_PATH "/dev/ubi%d_%d"
+#define UBI_SYSFS_ROOT	"/sys/class"
+
+#define UBI_MAX_ID_SIZE	9
+
+#endif /* !__UBI_INT_H__ */