Support for what I called the "9-byte tags" mode, as used in the
original Yaffs and more recently by the folks using the
Routerboard products, has been integrated into Yaffs mainline.
To enable this mode use config option CONFIG_YAFFS_9BYTE_TAGS
AND see the note in yaffs_mtdif1.c regarding the configuration
of MTD.
Note, this mainline feature how replaces the functionality that
was, up to now, only included in the patched version at
http://users.actrix.co.nz/manningc/yaffs2-ian-20070523.tgz
This tarfile will disappear soon.
-imcd