Hi!

> > You say that for this controller it would be bad to do in SW, because it
> > would take too much time in BIOS calls. (I wonder how much...) 
> 
> Yeah, it would be interesting to know how much. However, measuring BIOS
> latency and time spent on such calls can be tricky: one needs to use a
> high-res clock that it is not used anywhere else, in order to measure
> it. 

I'm sure you can time kernel compilation while LEDs are using software
netdev trigger, for example.

								Pavel
-- 
http://www.livejournal.com/~pavelmachek