roux jean-denis wrote:
>
> Hi all,
>
> I would like to know what are the constraints on a
> IRQ handler which is called with
> rt_request_irq(irq_line,handler) under RTAI ?
>
> I mean is there anything to do (else than disable
> ant enabe the irq line) within the handler ?
>
> Regards
> Jean-Denis ROUX
>
Hi jean-denis,
I just do an Irq acknowledgment for my PCI card in the Irq handler.
The things to do in your irq handler is specific to your card (like the
ack).
( If you use fp in the irq handler see in rtai.org the related
document.)
Carefull if there is shared Irq.
To prevent it , I use to call rt_pend_linux_irq at the end of my
handler,
especially with PCI irqs.
Chris.
--
Kumsta Christophe
Machinery Agrobotic Fruit
<[EMAIL PROTECTED]>
Real-Time image processing developper
RT-Linux/RTAI ( Use the Source Luck !)
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