hardware interfacing in linux with gnat

[Jaap van Erk <j.h.van.erk@hccnet.nl>]

Dear all,

I have an hardware interface card with relay's and  8255's.
It's published in Elektuur several years ago (a Dutch electronics
magazine)
this card can be steered with io adresses 792 to 800 (decimal).
In C we use the inb and outb commands (see the io-port mini howto)
Because we must also use ioperm(), and a optimizing flag -O we can
access the hardware in linux.

I tried Jerry van Dijk's clock.adb program to do it also; it's compiling

without errors, but it give a coredump when accessing the ports.
How can I use ioperm() in gnat?  (3.11 for linux 2.0 and 3.13 for 2.2)
clock.adb works ok when i'm using Dos.(Bedankt, Jerry voor dit programma
)

Any idea what's going wrong?

Best regards,

Jaap van Erk
Rotterdam