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- To: crisos@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [crisos] GPIO and Interrupt
- From: Claudio <claudyus84@xxxxxxxxx>
- Date: Tue, 9 Sep 2008 08:42:07 +0200
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Hi Mike
2008/9/8 Mike Lawson <crisos@xxxxxxxxx>:
> Hi all,
>
> I use the Foxboard (FoxGM) with the alpha firmware for a project at school.
> Is
> there a possibility to monitor the button press (or any GPIO ports/pins
> configured as digital input) without polling it?
your question is really an interest one.
Looking inside foxbone syscall
(http://svnweb.tuxfamily.org/filedetails.php?repname=crisos/svn&path=%2Ftrunk%2Ftarget%2Flinux%2Fetrax%2Fpatches-2.6.19%2F500-foxbone_syscall.patch&rev=57&sc=0)
there are some interrupt related stuff, investigate into it a bit you
can see a call to request_irq documented here:
http://www.silicontao.com/ProgrammingGuide/GNU_function_list/request_irq.html
Should be pretty to see some example code who use IRQ on foxboard!
Please let us know your experience
>
> At the moment I do the following
>
CUT
>
> Any better solution is highly appreciated!
> Thanks a lot and best regards,
>
> Mike
>
--
Claudio
User linux #415284
http://www.crisos.org/ - Cris linux distribution
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