IRQ handling

Ivan Loskutov loskutov.ivan at ...9...
Tue Jul 17 09:38:25 CEST 2012


Hello Stefan,

Thanks. I'll try this method. I forgot about this wonderful feature.

--
Ivan Loskutov




2012/7/17 Stefan Kalkowski <stefan.kalkowski at ...1...>

> Hello Ivan,
>
> On 17.07.2012 08:38, Ivan Loskutov wrote:
> > Hello.
> >
> > I try to implement touchscreen driver. I have resistive touchscreen and
> > this touchscreen used GPIO pin for interrupt on tap. I try to extend my
> > GPIO driver for this. I know how to handle IRQ in driver but I need to
> > send this IRQ event from GPIO driver to touchscreen driver. How to do
> > it? I see only polling from touchscreen driver. Or can I use other
> solution?
>
> What about providing the IRQ service by the GPIO driver itself. You can
> route the IRQ service requests of the touchscreen-driver (in init's
> configuration) to the gpio-driver, and for all other children to core
> (like it's the default case). The touchscreen-driver can use the IRQ
> interface the same way as if the IRQ service would reside in core. Btw.
> that's one of the main reasons why we love these virtualizeable services
> in Genode.
>
> I hope I got your question right, and this is what you were looking for?
>
> Best regards
> Stefan
>
> PS: looking forward to test out your touchscreen-driver!
>
> >
> > --
> > Ivan Loskutov
> >
> >
> >
> >
> >
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> --
> Stefan Kalkowski
> Genode Labs
>
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