Screen rotation doesn't rotate Touchscreen input

[Michael Franzl]

There is a handful of touchscreens by now that are supported by the 
Linux kernel natively. If you turn the touchscreen by 90 degrees and you 
rotate the screen via System -> Preferences -> Monitors, the coordinates 
of the mouse are rotated too. But the x and y coordinates from the 
touchscreen input are not rotated.

Is there any way to change this?

Thanks,
Michael