> > How? AFAIK OFW provides interrupt mapping information via the 
> > properties of device nodes. But there is no generic interrupt 
> > interface. (E.g. OFW calls OS back if a device has signaled an 
> > interrupt or the like.) That is why port ofppc runs so 
> slow. All OFW device drivers use polling.
> 
> Hmmm... I thought there was a proposal to allow setting 
> interrupt callbacks, but I've been searching for it without 
> success. So probably it doesn't exist :-)

It doesn't.

We are working on something new and similar idea though.

-- 
Matt Sealey <matt@genesi-usa.com>
Manager, Genesi, Developer Relations