Hi,
On Thursday, 28 of July 2005 10:06, Takashi Iwai wrote:
> At Wed, 27 Jul 2005 22:52:49 +0200,
> Pavel Machek wrote:
> >
> > Hi!
> >
> > > > The following patch adds free_irq() and request_irq() to the suspend and
> > > > resume, respectively, routines in the snd_intel8x0 driver.
> > >
> > > The patch looks OK to me although I have some concerns.
> > >
> > > - The error in resume can't be handled properly.
> > >
> > > What should we do for the error of request_irq()?
> > >
> > > - Adding this to all drivers seem too much.
> >
> > There's probably no other way. Talk to Len Brown.
> >
> > > We just need to stop the irq processing until resume, so something
> > > like suspend_irq(irq, dev_id) and resume_irq(irq, dev_id) would be
> > > more uesful?
> >
> > Its more complex than that. Irq numbers may change during resume.
>
> Hmm, then the patch looks wrong. It assumes that the irq number is
> as same as before suspend.
Well, that''s the theory, but frankly I don't see a practical reason. I have never
seen this happening. Practically, for this to happen, you'll have to reconfigure
the BIOS accross suspend/resume which is dangerous anyway.
Greets,
Rafael
--
- Would you tell me, please, which way I ought to go from here?
- That depends a good deal on where you want to get to.
-- Lewis Carroll "Alice's Adventures in Wonderland"
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