Re: [RFC] New Driver Model for 2.5

Kai Henningsen
2001-10-19T00:19:47Z

mochelp@infinity.powertie.org (Patrick Mochel) wrote on 18.10.01 in <Pine.LNX.4.21.0110180826240.16868-100000@marty.infinity.powertie.org>:

> > I would add to the generic structure device, a "uuid" string field.
> > This field would contain a "munged" unique identifier composed of
> > the bus type followed which whatever bus-specific unique ID is
> > provided by the driver. If the driver don't provide one, it defaults
> > to a copy of the busID.
> >
> > What I have in mind here is to have a common place to look for the
> > best possible unique identification for a device. Typical example are
> > ieee1394 hard disks which do have a unique ID, and so can be properly
> > tracked between insertion removal.
>
> Hmm. So, this would be a device ID, much like the Vendor/Device ID pair in
> PCI space?

Except for the fact that the Vendor/Device ID pair is a device *class*
identifier, and the uuid is a device *instance* identifier.

MfG Kai