xorg with numlock on USB key/numpad always on

[hexa]

Hi,

i'm using Xorg and external USB num pad (only numerical keys) along side my normal ps2 keyboard.
I would like to have numlock on my USB key/numpad always on. Even if i (or anyone other for that matter) presses it and disables it it should go back on automagically.

I have found numlockx, which is great. I put it in a simple shell script (while1;numlockx on;sleep 3) and works but only for the PS/2 keyboard! I doesn't for my USB keypad.
Is there a program or kind of Xorg configuration that i can use to make numlockx always on or that it turns itself on if it's disabled?

Thank you for any ideas.



This is the code i use for Xorg for USB numpad: