Re: [reiserfs-dev] Re: IDE problem: linux-2.5.17

Vojtech Pavlik
2002-05-24T14:54:30Z

On Fri, May 24, 2002 at 03:40:32PM +0200, Martin Dalecki wrote:
> Użytkownik Vojtech Pavlik napisał:
>
> >>Hey what I'm talking about is the "physics" of the hardware.
> >>But I would rather expect sane hardware to deal with it transparently
> >>to the programmer of the setup registers.
> >
> >
> > Well, when I hear "timer" I think "engineering", not "physics". And a
> > timer would have to be visible somewhere. I really don't think the
> > controller can tell how many drives it sees unless it measures the
> > termination resistance or somesuch.
>
> Jak się zwał tak się zwał, byle by się dobrze miał :-).
>
> Anyway measuring the termination resistance is rather trivial
> from the electrical point of view...

Yes, but trust me that if they don't absolutely have to do it to make it
work, they won't do it. IDE hardware is cheap in the first place.

--
Vojtech Pavlik
SuSE Labs