Re: [linux-usb] Re: USB device allocation

Johannes Erdfelt (jerdfelt@sventech.com)
Tue, 5 Oct 1999 19:24:09 -0400

On Tue, Oct 05, 1999, Dan Hollis <goemon@sasami.anime.net> wrote:
> On Tue, 5 Oct 1999, Johannes Erdfelt wrote:
> > As it stands right now, there is no solution for naming of Plug and Play
> > devices. I'm specifically interested in USB since that's what I work on,
> > but this applies to everything plug and play (even PCMCIA)
> > The problem is if you have 2 mice, how do you name? What if they are
> > plugged in a different order, now 1 becomes 2 and 2 becomes 1.
>
> How do other OS deal with this issue? Eg BeOS Solaris M$doze etc?

I don't know of any Unixes which are truly plug and play.

I have no experience with BeOS, but I've heard their solution works
well.

Microsoft doesn't use device nodes, but they solve the naming issue with
GUID, Globally Unique Identifiers. This is something that has been
brought up before.

Also, Windows doesn't differentiate between different Mice for instance,
they all move the one cursor on the screen.

All in all, I'm not really familiar with all of the different PnP
solutions in other OS'. Does anyone have more information?

JE

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