[Yaffs] Yaffs and MTD

Hi,

I'm currently using yaffs on a new linux embedded device, and I made my
tests by simply implementing the write / read / erase / init methods, and
setting it manualy in yaffs_internal_read_super.
My question is : What is the advantage of writing a new mtd driver for a
yaffs filesystem? (I don't plan to use another flash filesystem, and don't
plan to use already existing mtd drivers).

Regards,
André