On Mon, 2008-07-14 at 16:48 -0400, Robert P. J. Day wrote:
> On Mon, 14 Jul 2008, Bernd Petrovitsch wrote:
>
> > As for the Linux kernel:
> > - soft realtime: Posix-RT-Priorities is probably good enough.
> > - hard real-time: you need (at least) RTAI or RTLinux.
>
> probably a stupid question, but where does ADEOS fit into this
> picture?
RTAI is actually an extension to the kernel containing
- a hard RT kernel controlling the (complete/necessary) hardware and
scheduling RT-tasks
- an API for RT communication (pipes, etc.)
- and the glue so that the kernel runs a the lowest priority RT-task on
top of the RT kernel
ADEOS seems to me to be another RT kernel.
Basically one couls also run *BSD on top of an RT kernel - it is
somewhat just a "new" architecture (as the RT-kernel controls the
hardware and the kernel must use RT-kernel API calls to access the
hardware).
Bernd
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