[IAEP] [support-gang] XO-4 Questions After Viewing CES video

Paul Fox pgf at laptop.org
Fri Jan 11 08:22:12 EST 2013

bert wrote:
 > On 10.01.2013, at 21:19, John Watlington <wad at laptop.org> wrote:
 > >> More recent versions of the XO-4 touchscreen firmware should allow
 > >> a many-finger keyboard.  I hope someone with an XO-4 is working
 > >> on a demo!
 > Oh, I must have missed the announcement.  How is the raw touch data
 > exposed?

sorry!  a few releases of the touchscreen firmware ago, the max number
of touches quietly went from 2 to 4.  full positioning is still only
accurate with just 2, but the touchscreen will attempt to keep track
of 4 if they're separable in at least one axis.  so there's nothing
special for a program to do (i.e., no raw data to fetch).

i haven't experimented with the feature much, but gonzalo has the
beginnings of a nice little piano playing activity floating around

 paul fox, pgf at laptop.org

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