Re: [PATCH] convert powermac ide blink to new led infrastructure

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

On Mon, 2006-05-01 at 11:25 +0200, Johannes Berg wrote:
> On Mon, 2006-05-01 at 19:10 +1000, Benjamin Herrenschmidt wrote:
> 
> > Yes, there is a callback, that's the "done" function, but you can also
> > poll/check on request->complete though in this case, polling is not
> > recommended, the LED stuff should be as low latency as possible.
> 
> I suppose then what I'll do is request a done callback, and when an LED
> update comes in while not done, just save it into a new 'next state
> should be' variable, which is compared when done so that at worst I
> loose events, but not the final status.
> 
> Can I use pmu_request from within the done callback with the same
> structure? Probably not a good idea right? I can schedule_work then.

No need to schedule work, it should work fine to re-queue

Ben.