[RFC] Preliminary XI 2 feature list

Daniel Stone daniel at fooishbar.org
Mon Sep 15 09:33:55 PDT 2008

On Mon, Sep 15, 2008 at 11:06:57AM -0400, Jim Gettys wrote:
> IIRC, XI 1 uses a byte for device number (the API is an int, the wire
> protocol a byte).
> This could become an issue for a large shared display wall environment
> someday; seems like if there is a binary protocol break, making that
> larger would be good.
> The other question in my mind is should the wire protocol have provision
> for multiple users, so that a device is a user/device # tuple?  In which
> case a byte on the wire is fine, as it seems unlikely an individual will
> sprout more that 256 input devices.

Erm, this is already covered here:

> > - 16 bit device IDs

As covered with Peter, I think making the distinction between users at
the input protocol level is unnecessary and pointless, and will only
cost us in the long run.

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