Linux developers have begun exploring the changes Microsoft has made to their HID (Human Interface Device) protocol for Windows 8
that will affect how new Windows-focused multi-touch devices function.
Henrik Rydberg has published a patch
to the kernel mailing list for including Windows 8 support. With the HID protocol for Windows 8, Microsoft's new Windows release allows for devices to transmit more information on each touch event, such as for details about the touch alignment.
Henrik's patch updates the multi-touch protocol for the new events and documents how to map Windows 8 devices.