Re: DMA IRQ, or How To Prevent ipaq-sleep, From Suspending A Zaurus Playing Music

"Justin Patrin" <[email protected]> Fri, 15 Sep 2006 21:05:49 -0700
Newsgroups gmane.comp.handhelds.openzaurus.user
Message-ID <[email protected]>
On 9/15/06, Justin Patrin <[email protected]> wrote:
> On 9/15/06, Justin Patrin <[email protected]> wrote:
> > On 9/15/06, Francesco Marchetti-Stasi <[email protected]> wrote:
> > >
> > > "Justin Patrin" <[email protected]> wrote:
> > >
> > >  > I would also gretaly appreciate an answer to this as the "CPU
> > >  > utilization" parameter to ipaq-sleep seems to do effectively nothing.
> > >  > I have resorted to removing/renaming ipaq-sleep as I couldn't get it
> > >  > not to start (*something* keeps starting it no matter what I try...).
> > >
> > > I've been to verbose, I suppose...
> > >
> > > Just set IRQ = 18 in /etc/ipaq-sleep.conf and it won't suspend while you
> > > play music.  I was only wanting to check whether there may be unwanted
> > > consequences...
> > >
> >
> > No, I got that part. It just seems strange to use the DMA interrupt
> > for this as DMA is used by other things, at least on a normal machine.
> >
>
> On my spitz /proc/interrupts shows 18 as pxa2xx-i2c. RP confirms that
> i2c is only for audio so using it for audio checking in ipaq-sleep
> should be fine. :-)
>

Except it isn't...I set IRQ = 18 and started up ipaq-sleep and it
happily suspends my Zaurus after X minutes without regard to playing
audio. :-P

-- 
Justin Patrin

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