Thanks for your fantastic work Oskari! You beat me to it - I was getting
close to getting absolute positioning working but hadn't worked out the
correct registers yet.

I applied your changes to the stock Oneiric kernel. Scrolling works as
you stated, however cursor movement is jumpy to the point of being
unusable. I compiled the driver with debug output enabled, and it looks
like the driver is receiving a smooth stream of absolute packets from
the hardware. It reports >50 packets per second and the timestamps look
right as well. But the way the cursor behaves it seems like only about
1-3 packets per second are actually being received by X. Please let me
know if you need any other debug information.

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https://bugs.launchpad.net/bugs/311869

Title:
  Add driver for Sentelic Touch pad

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