Re: [iPAQ] iPAQ touchscreen jitters

On Thu, Jan 03, 2002 at 08:35:30AM -0800, Keith Packard wrote:
> Around 16 o'clock on Jan 3, David Woodhouse wrote:
> > > I've updated the iPAQ touchscreen driver to include an anti-jitter
> > > filter
>
> > Wouldn't this kind of filtering be better in userspace?
>
> Yes. I expect we'll want to change this value on the fly; placing it in
> the kernel makes that harder.

You might like to examine tslib. Please see:

   http://www.arm.linux.org.uk/cvs/

for more information. It has been written to cater primerily for
UCB1x00 touchscreens, but should work on the iPAQ with very little
problem.

It isn't complete yet, but is basically functional, and provides a
useful user space solution.

-- 
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html