hi, Am Dienstag, den 23.03.2010, 10:57 -0700 schrieb Brian Murray: > On Fri, Mar 19, 2010 at 08:21:26PM +0000, Caroline Ford wrote: > > Do programs generally work okay or does it depend on libraries etc? > > The touchscreen and stylus control the pointer just the way a mouse > would. if you talk about stylus and pointer i suspect you have a wacom tablet device (probably with a resistive touchscreen on top though) this is a very special case and totally different from a plain touchscreen. in wacom the input device is the external device (stylus, pointer etc) while on a touchscreen the pyhsical surface is the input device, input event translation and movement happen in a different way here.
there are about 10 different "real" touchscreen chipset drivers out
there of which we only support one or two.
the wacom drivers in turn are well supported and maintained since a
while.
the evtouch driver (which suports the widest range of touchscreens
regardless of the connection (USB, serial etc) that i hacked up with
quick hal workarounds in the intrepid cycle either needs porting to the
new Xinput/udev model or the chipset drivers need to be ported on a
kernel level to the usbtouchscreen driver so the general evdev X driver
will pick them up.
the former was the quick hack way to get anything at all (and porting
might be as quick as well) while the latter is the right way (and what
xorg upstream perfers to do) but the latter will take a lot more time
and effort (though the latter indeed excludes all serial or PS/2
attached touchscreens of which there are still a huge amount out there).
there was a spec for this during last UDS but to my knowledge no work
has been done regadring this spec.
ciao
oli
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