yaffs_packedtags1.h

linux 镜像文件制作 用于压制yaffs2类型的文件镜像啊啊啊啊啊啊

/*
 * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
 *
 * Copyright (C) 2002-2007 Aleph One Ltd.
 *   for Toby Churchill Ltd and Brightstar Engineering
 *
 * Created by Charles Manning <[e-mail]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 2.1 as
 * published by the Free Software Foundation.
 *
 * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
 */

/* This is used to pack YAFFS1 tags, not YAFFS2 tags. */

#ifndef __YAFFS_PACKEDTAGS1_H__
#define __YAFFS_PACKEDTAGS1_H__

#include "yaffs_guts.h"

typedef struct {
	unsigned chunkId:20;
	unsigned serialNumber:2;
	unsigned byteCount:10;
	unsigned objectId:18;
	unsigned ecc:12;
	unsigned deleted:1;
	unsigned unusedStuff:1;
	unsigned shouldBeFF;

} yaffs_PackedTags1;

void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t);
void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt);
#endif