@sattommy
Yes I think they still have to be patched. Shouldn't the kernel also be signed?
Yes,I know about signing kernel, but like I said till I get rs232 interface ,can't play with that stuff.
For directfb, do you have the curacou package, which seems to be necessary to compile. Could you compile amp_test for me?
I have amp_test binary but we are still working on directfb package, so when we are 100% shure everything is working , I will upload here files.

Although someone seems to be able to patch, compile and run it:
hxxp://www.t-hack.com/forum/index.php?topic=583.0
I know about that hack...