How do I know my UBI/UBIFS code version?

[Woody Wu]

On October 11, 2014 2:41:52 AM GMT+08:00, Richard Weinberger <richard at nod.at> wrote:
>Am 10.10.2014 um 20:38 schrieb Woody Wu:
>> 
>> 
>> On October 10, 2014 11:28:26 PM GMT+08:00, Richard Weinberger
><richard.weinberger at gmail.com> wrote:
>>> On Fri, Oct 10, 2014 at 4:57 PM, Woody Wu <narkewoody at gmail.com>
>wrote:
>>>> I am running ubi/ubifs on a ported ARM linux 3.1.x.  How do I get
>>> know my ubi/ubifs version? In additional, if I found the version are
>>> too old, could I simply copy a newer version source files to my 3.1
>ARM
>>> linux tree?
>>>
>>> Ported in terms of utterly broken by a SoC vendor? ;-)
>>> If your kernel version is v3.1 then also UBI and UBIFS is v3.1
>unless
>>> someone messed with it.
>>> To find out you need to consult the changelog.
>>>
>>> And no, you cannot simply copy&paste the sources files between
>kernel
>>> releases as the internal kernel API is
>>> a moving target.
>> 
>> 'ubinfo -a' returns to me "UBI version: 1" in its first line output. 
>Does it looks strange to you?  Thanks.
>
>This version is always 1.
>If we consider UBI Fastmap at some point rock stable _and_ make it
>default we'll change this version maybe to 2.

So, back to my original question, how do I know my UBI version? Just '1' in the case?  Thanks.

-woody, sent from mobile