[PATCH libinput 0/24] Tablet support

[Chandler Paul]

On Fri, 2014-05-23 at 17:00 +1000, Peter Hutterer wrote:
> I'm almost sold on normalization since it does reduce the likelihood of
> things going wrong. We need to provide the axis resolution to convert back
> to the real data though where needed.
> 
> once you provide the axis resolution, it doesn't matter if you provide raw
> data unless you also want to provide "raw" resolution, which is excessive.
> 
> so, given that this would be sent down the protocol (and for the limited
> resolution) the range should be normalised to uint16_t or uint32_t max, with
> the resolution in units/mm or canonicalized where more appropriate. This
> would be what goes on the wayland protocol as well then.
> 
> helper functions to convert that back to doubles, or elbows per square ounce
> would be part of the wl-client package that parses that protcol, not
> libinput.
> 
> that doesn't seem like the worst architecture for both libinput and the
> protocol, any comments?

Seems fine to me. As for normalizing values to units/mm or the like, is
there any known conversion for the units the tablet returns for distance
to metric?

Cheers,
	Lyude
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