Thanks for your great comments. You are right, it is impossible to get
correct finger tracking if both fingers are moving. However, we think it
still worth to have the firmware tracking of the fingers as they could
perform well for most one-stationary-one-moving cases. This will be good
enough for the one-stationary-one-moving gestures we want to provide on
Cr-48. And that's why we want to make the patch specific to Cr-48.
If one finger is stationary, it is trivial to find out where the other
finger is using the available semi-mt data.
The general feeling about this patch is that it is very similar to
where we started off two years ago. The problems we saw then led to
the implementation of the semi-mt protocol. I doubt things have
changed much since then.
Thanks,
Henrik