multi-touch-dev team mailing list archive

[David Barth <david.barth@xxxxxxxxxxxxx>]

On 06/01/2010 10:44 PM, Henrik Rydberg wrote:
> 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.
>   
Right, it would really, really help, not to have drivers outside of the
kernel. I heard about those plans to get the wacom driver back behind an
evdev(+) interface, but would love to get some details about how far
that is.

David