Comment 184 for bug 550625

Sorry that I haven't had the time to follow up on this in a while. If upstream is holding out for multitouch specs, then I wouldn't hold my breath waiting. From what I could tell, when I looked at it, the multitouch support in Windows is handled by the user-space driver, and not by the hardware. So if we want that support, we're on our own. I've decoded enough of the protocol that a full-featured driver can be written (with the possible exception of sensitivity adjustment; though based on the Windows driver initialization, that *might* be the job of registers 0x14d and 0x163.) But the implementation will need to handle basically everything: tapping, dragging, scrolling, gestures, etc.

@mättu (#183): Try setting register 0x0005 to the value 0x03 (IMPS emulation + Disable hardware tap)