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Subject: Re: Sansa (PP502x?) GPIO interrupts in rockbox software

Re: Sansa (PP502x?) GPIO interrupts in rockbox software

From: Jonathan Gordon <>
Date: Wed, 9 May 2007 08:04:00 +1000

On 09/05/07, Barry Wardell <> wrote:
> On 5/8/07, Antonius Hellmann <> wrote:
> > The keys definitely change the HI_INT_STAT bit6. So if someone wants to
> > implement key/scrollwheel interrupt handling, the bit6 in the
> > CPU-/COP_HI_INT_EN register should do it.
> I had a go at doing this a while ago but didn't know about bit6 then.
> I tried updating my patch today but haven't got my Sansa with my to
> try it out. I've attached it so someone with a Sansa can try it out.
> Since I haven't actually tested, there could be plenty of bugs
> floating around. It does at least compile cleanly.
just tested this patch, no buttons at all. (except hold switch), no wheel also
Received on 2007-05-09

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