Yaffs2 is using a mtd 2.6 only structure members called block_isbad, and block_markbad members from mtd_info structure. Is yaffs2 usage of these memebers required for 2.4 kernel support? In other words, am I required to back port the mtd 2.6 kernel driver in order to use yaffs2 in a 2.4 kernel? Thanks, Jim Newell -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.6.2 - Release Date: 3/4/2005