.fdi files and HAL

[Joe Shaw]

On Tue, 2004-06-08 at 01:55 +0200, David Zeuthen wrote:
> On Tue, 2004-06-08 at 01:40, Joe Shaw wrote:
> > On Tue, 2004-06-08 at 00:41 +0200, Colin Marquardt wrote:
> > > > Also, is *every* device uniquely identifiable by its PCI/USB product_id?
> > > 
> > > At least not for USB IDs, unfortunately. There are many digicams out
> > > there that share the same USB Product ID, and I hear it's the same
> > > for scanners.
> > 
> > Printers too. :(  All Epson Stylus printers have the same USB IDs... you
> > have to use a special printer protocol to get a stringified
> > representation of the exact model.
> > 
> 
> But we do this today, yeah? So we can actually match on this in the .fdi
> file, right?

Oh yeah.  We're cool, baby, we're cool.

I meant it mainly as an example that the USB/PCI IDs aren't always 100%
unique.

You can match on it, but you have to match on it as a string as opposed
to a numeric ID, which is always a little nastier.

Joe


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