Subject: Re: HP USB interface confuration error; quirk needed?
To: Nathan J. Williams <nathanw@MIT.EDU>
From: Lennart Augustsson <>
List: tech-kern
Date: 06/27/2001 00:46:09
Hmm, I think the ulpt match routine needs changing so that it looks
through the alternate settings.  The attach already does it.

    -- Lennart

"Nathan J. Williams" wrote:

> nathanw@MIT.EDU (Nathan J. Williams) writes:
> > Second, the configuration descriptor listed "bNumInterface=1", but
> > then three interface descriptors followed. I think that this is
> > incorrect on the part of HP, but I'm not 100% sure about the semantics
> > of this bit of data.
> Scratch that; I re-read the USB spec, and saw the difference between
> "Interface Descriptor Number" and "Interface Number".  They're
> alternate interfaces. I will now go see why we don't seem to deal with
> those...
>         - Nathan