Re: RFC: drop frontend support for relative pointer

[Markus Armbruster <armbru@redhat.com>]

Stefano Stabellini <stefano.stabellini@eu.citrix.com> writes:

> On Wed, 7 Oct 2009, Daniel P. Berrange wrote:
>> That's good to know - stubdom was one area I was concerned about. To the
>> best of my knowledge the only backend that ever sent relative mouse events
>> was the old PVFB we had in Fedora 6 which was the original code before 
>> the eventual merge into official xen-devel trees. So official repos have
>> always defaulted to absolute mode.  Hopefully no one out there has gone
>> and re-implemented the PVFB backend in any other fork of Xen and dropped
>> ABS mode or made REL the default ???
>> 
>> IMHO if ABS mode is able to work correctly, then there's absolutely no
>> benefit in having a REL mode at all, so its best deleted / removed. 
>
> I guess keeping around unused code doesn't make much sense but I was just
> being cautious, given that for example XCI is currently using relative
> coordinates so they are not dead just yet.

Just to avoid misunderstandings:

* Does XCI set feature-abs-pointer in xenstore?

* If it does, does it read request-abs-pointer from xenstore?

* Under what circumstances (if any) does it send XENKBD_TYPE_MOTION, and
  under what circumstances (if any) does it send XENKBD_TYPE_POS?