Re: [Handhelds] Re: Touch Screen Driver Generic Interface for allLinux SA11x0 platforms.

[Paul Koning]

>>>>> "Bradley" == Bradley D LaRonde <[EMAIL PROTECTED]> writes:

 >> Some people are assuming that the digitizer is spitting out points
 >> at a constant interval.  Others are assuming that the digitizer is
 >> only spitting out deltas.

 Bradley> Yup, I'm a constant interval assumer.  :-)

 Bradley> To all: is that safe to assume?  Is there touch panel
 Bradley> hardware out there that won't do this?

I think so.

Furthermore, passing only non-zero deltas across the kernel/user
boundary is more efficient.  Those boundary crossings are very
efficient and doing one every millisecond or so is not particularly
desirable.

        paul

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