On 5/26/06, Charles Manning <manningc2@actrix.gen.nz> wrote:
>
> The email got really badly smashed up by the time I received it, and I
> expect
> others might have had the same problem too. This might have been due to
> your
> emial client or it might be due to the way Nick forwarded it. It is best
> to
> post directly to the list.
>
> On Wednesday 24 May 2006 17:55, hurray_0@sina.com wrote:
> > # mount -t
> > yaffs /dev/mtdblock/3 /mnt> yaffs: Attempting MTD mount on 31.3, dev is
> > 7939 "1f:03"> yaffs: MTD device does not support required functions>
> mount:
> > Mounting /dev/mtdblock/3 on /mnt failed
>
>





There are a few things that need to be right:
>
> 1) When you mount, you need to tell the system you want to mount in
> "yaffs"
> mode to support 512 byte devices. You can do this with
>
> #  mount -t yaffs /dev/mtdblock/2  /mnt/flash
>
> The "MTD device does not support required functions" happens because
> different
> mtd functions are used for 512 byte NAND versus 2k NAND or the mtd driver
> you
> have does not support the required functions.
>
> The easiest way to resolve this is likely to look in yaffs_fs.c where the
> checks are made and add a few more checks.


and also could be cause enough when we have a cvs yaffs trying to talk to a
2.4.18 kernel
on the mx2 which i believe has a custom nand_core layer written