On Tue, May 22, 2012 at 10:53:21AM +1000, Marc Reilly wrote:

> It was a new format which introduced a padding bit. I wonder if Mark Brown can 
> comment on whether any other devices are using it successfully. (Sorry I can't 
> offer more insights there).

It's only this chip that's doing so.  I'd suggest putting a scope on it
and having a look at the formatted data.