Pavel Machek wrote:
> Hi!
> 
> I have... quite an interesting setup here.
> 
> SMP machine, with special PCI card; that card has GPIOs and serial
> ports. Unfortunately, there's only one interrupt, shared between
> serials and GPIO pins, and serials are way too complex to be handled
> by realtime layer.

If the configuration is fixed, you may handle the shared interrupt in
the way described here, and you should not have the loss of real-time
guarantees:
https://mail.gna.org/public/xenomai-core/2008-07/msg00025.html

-- 
                                            Gilles.

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