Chase Douglas wrote:
[...]
One side note: After some more code digging, I realized that there
are
some drivers that reside directly inside of X. Most of these drivers
talk directly to the hardware over the standard serial port, so they
bypass the kernel and EVDEV layer altogether. As far as I know,
none of
them support multitouch; however, the serial port (as opposed to
bluetooth or usb) wacom driver is in X, and new wacom serial
devices are
multitouch. If we want to enable them, we may have to reinvent the
wheel
inside the kernel to export them through EVDEV. I *think* this
would be
a good thing overall, and no one upstream said the contrary when I
asked
whether the way forward for multitouch was through the kernel and
evdev.
Ping Cheng of wacom have been very active during the patchwork for
the MT slot
extension, and it is very likely that they have something cooking
for the MT
protocol. If you want, I could try and see if they would be
interested in
accelerating the development, targeting Maverick.
Henrik
