> I try to run a small terminal program that switch to raw keyboard
> input mode, and report what all keyboard events. To my surprise,
> there is no key release event indeed, and the output looks unlike
> key codes.
...
> The patch and my xmodmap file is attached below. 

One thing I did when implementing a touch screen keyboard, is to
generate both the 'key-down' and 'key-up' events when the pen
is lifted.  This lets you slide the pen onto the correct key.

	David

-- 
David Laight: david@l8s.co.uk