X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_ecc.h;h=79bc3d117146d4d08f823dca2ec3700cc0c9bf9e;hp=5f026a09a0f208a420e0d06a2f8b49648a7421ba;hb=60f55316e15628d46797ef660093706bf63e83bc;hpb=68f0159122cfb94e6912dd99d6398ba72e578a72 diff --git a/yaffs_ecc.h b/yaffs_ecc.h index 5f026a0..79bc3d1 100644 --- a/yaffs_ecc.h +++ b/yaffs_ecc.h @@ -1,24 +1,24 @@ /* - * YAFFS: Yet another FFS. A NAND-flash specific file system. + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. * - * yaffs_ecc.c: ECC generation/correction algorithms. - * - * Copyright (C) 2002 Aleph One Ltd. + * Copyright (C) 2002-2007 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering * * Created by Charles Manning * * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as + * 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 code implements the ECC algorithm used in SmartMedia. * - * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. + * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. * The two unused bit are set to 1. - * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC + * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC * blocks are used on a 512-byte NAND page. * */