[linux-dvb] how can this work, what can I do?

Manu Abraham abraham.manu at gmail.com
Sun Feb 18 17:48:02 CET 2007


On 2/18/07, Udo van den Heuvel <udovdh at xs4all.nl> wrote:
> Manu Abraham wrote:
> > On 2/18/07, Udo van den Heuvel <udovdh at xs4all.nl> wrote:
> >
> >> How does the Device Number scheme works w.r.t. influencing what
> >> interrupt goes where? Can I find out what inerrupt my DVB-cards are
> >> really connected to (instead of what the kernel thinks)?
> >
> > Currently the DVB subsystem *just* handles IRQ by doing a request
> > IRQ(request_irq). It is the PCI subsystem which is responsible and
> > handles out the IRQ which is based on the information read from the
> > PCI Bars.
>
> Thanks.
> So what can I do? Where should I ask what?
> (see my post to linux-kernel as well)

saw your post at LK. I think that's the right place to ask that question.


> I just want to find out what the real IRQs are for the cards on the
> riser. Is there a good method to do just that?
>
> Then, when I know the IRQs I must tell Linux, that's the next part.
>

The PCi subsystem handles that part, so the relevant changes in case
of any need to go in there.


manu



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