I've found the solution in this post:
http://weijr-note.blogspot.com/2011/...kindle-dx.html:
Code:
# cat > /tmp/root/.directfbrc
no-vt
linux-input-devices=/dev/input/event0,/dev/input/event1
And then sample application runs. We can make sure by updating eink display:
Code:
# echo 1 > /proc/eink_fb/update_display
However it does not react to keyboard presses.

And since it captures input devices and does not release 'em after incorrect (^C from ssh terminal) termination, standard gui does not respond until reboot when .directfbrc gets removed.
You can try on your own risc.