Re: [Consult] our latest kernel and latest Android under armSamsung S5PV210 with yaffs2 file system

From: Theodore Ts'o
Date: Tue Jan 08 2013 - 09:53:33 EST


On Tue, Jan 08, 2013 at 06:25:06PM +0800, Chen Gang F T wrote:
> use yaffs2 file system for android
> it seems yaffs2 is a standard file system for android.
> for my android HTC phone is also yaffs2 file system.

yaffs2 is not a _standard_ file system for Android. There may be some
phones which use it, but the much more common is either FAT (for the
older phones) or ext4. The Google AOSP releases for pretty much all
modern Nexus phones (Galaxy Nexus and newer if I recall correctly,
certainly for GN, N4, N7, etc.) all use ext4.

> current:
> I am trying to use our latest kernel (such as next-20130104)
> can compile from the source code successfully.
> it has no source code for yaffs2 file system.

So if your existing Android device is using yaffs2, you'll need to
integrate yaffs2, since yaff2 is not in the upstream kernel. As far
as hardware support, it will depend on the specifics of your
development board, and I'm not enough of an ARM expert to answer that
question. Others hopefully on this list will be able to answer it.

Regards,

- Ted
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