Touchpad/tablet problem

[david at lang.hm]

On Mon, 29 Dec 2008, Richard A. Smith wrote:

> Greg Smith wrote:
>
>> Hopefully one of the touchpad/firmware experts can give you a link to
>> how you can capture and use raw data generated by the touchpad.
>
> The datasheet is here:
>
> http://wiki.laptop.org/go/Touch_Pad/Tablet
>
> You want to put the touchpad into "Advanced Mode."  In this mode it will
>  generate resistive mode data.
>
> Previous versions of the kernel driver supported operation in advanced
> mode.  I suggest you look at the git changelog for
> /drivers/input/mouse/olpc.c and find the patch where we switched from
> advanced mode back to mouse mode.  The driver prior to that patch will
> have all the info you need.
>
> Be warned however that sometime in Jan/Feb the XO production line will
> switch to a Synaptics device rather than an ALPS device and the
> Synaptics device does _not_ have any resistive features.

two questions

1. will the new device be full width, or just the current touchpad width?

2. will there be any way for first-gen purchasers to retrofit our systems 
with the new touchpad?

David Lang