Well shoot. So you have the right event number.
So what output do you get when you enter?
And if you haven't already be sure to run:Code:sudo /lib/udev/keymap -i input/event4
so you have a record of the original udev keymap. And come to think of it, check the contents and make sure the stuff is in it.Code:sudo /lib/udev/keymap input/event4 > ~/orig-map.txt