hi all,

I have a question about a program I am writing in Ada.  The program
should do the following (I know, it's not much :-)) : you type a number
(INTEGER) on computer 1, this computer sends the number to computer 2
via nullmodem connected to COM2, you type a number on computer 2, and
send this number back to computer 1.  both computers do some
calculations with these numbers and then give some output.  I have been
trying to write a device driver for the serial port communication, but
I'm stuck.  I don't know what the Interrupt_ID is for serial
communication : in the function Attach_Handler you must pass your
interrupt handler routine and the interrupt ID.  I don't know what this
is for serial communication, and when I look on the internet, I only
find examples in C (interrupt ID for serial port is 0xC or 0xB or
something like that : it doesn't work in Ada).  The ultimate goal is to
write a package that contains two routines : Send_Number(..) and
Get_Number(...).  The numbers that must be sent should be several (> 2)
bytes, so they should probably be split.  Allthough I know my way around
with C, I have no previous experience with Ada.  Does anybody know the
solution to this problem?  I will attach my code as it is right now.
Any comments / suggestions are very welcome!

Thanks in advance,
alex