Re: joypad interrupt question

From: Jim Kaba <jkaba_at_sarnoff.com>
Date: Tue, 29 Mar 2005 17:21:40 -0500

Phil Blundell wrote:
>
> On Tue, 2005-03-29 at 11:57 -0800, Erik Hovland wrote:
> > - The GPIO joypad interrupts are set up to interrupt on rising and
> > falling edge and for 'maximum' filtering.
> > 1. What is 'maximum' filtering or what is filtering in this context?
>
> I think the "filtering" in this context is glitch suppression, or
> debouncing. You should be able to find some details in the SAMCOP
> and/or s3c2410 datasheets.

  I was *just* about to submit the headset autodetect patches when I saw
this post. I am experiencing glitches with the headphone insert/removal,
so I'd be interested in any extra filtering I can enable.
  Is there any chance you could send me those data sheets, or point me to
code that actually enables the filtering so that I can try it with the
headphone jack? Right now I have a software workaround for the debouncing,
but if I can invoke some additional filtering that'd be great.

Thanks,
Jim

-- 
----------------------------------------------------------------------
James T. Kaba                   
Sarnoff Corporation   There are 10 kinds of people in the world:
jkaba_at_sarnoff.com     those who understand binary, and those who don't.
609-734-2246
Received on Tue Mar 29 2005 - 17:24:37 EST

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