[Bug 381884] Re: Appletouch touchpad driver produces jumpy two-fingered scrolling

[Ricky Campbell]

I believe that Macbook Pro 4,1 and newer use newer hardware and thus
have a different kernel module (bcm5974). This newer hardware make up
the "multitouch" touchpads (i.e. can track something like 11 different
independent touches all at once). Older hardware uses the appletouch
driver can detect whether there is more than one finger on the touchpad,
but do not track position data independently.

Both of these hardware types (and their kernel drivers) feed data to
Xorg through the synaptic driver.

Code repos for the newer drivers can be found here:
http://bitmath.org/code/

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Appletouch touchpad driver produces jumpy two-fingered scrolling
https://bugs.launchpad.net/bugs/381884
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