Re: devfs - why not ?

From: Johannes Erdfelt (jerdfelt@sventech.com)
Date: Thu Apr 13 2000 - 22:14:00 EST


On Thu, Apr 13, 2000, Stephen Frost <sfrost@mail.snowman.net> wrote:
> On Thu, 13 Apr 2000, Richard Gooch wrote:
>
> > Alan Cox writes:
> > > > So solving this is impossible and to not worry about it?
> > >
> > > Until we can find people who make mice and keyboards with serial
> > > numbers that are unique.
> >
> > I would have to agree. If there's nothing to distinguish two devices,
> > then no piece of software can give you a mapping that doesn't depend
> > on insertion/detection order.
>
> Heh, of course, there's the question of: can you *get* the
> information. I have no clue if you can or not, but I'm curious, *can*
> you get the serial number of a mouse? Does that work for any ps/2
> mouse? Just curious. If you can't, well, it don't make no difference
> if they're unique. :)

PS/2 mice don't have that information. USB devices have the capability
to, but all of the mice I've seen, don't have serial numbers.

JE

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