Amaury Jacquot <PICLIST@mitvma.mit.edu> wrote:

> >>>Is there no quality & performance 'certification' requirement
> >>>(like XP's logo) before someone can put the USB logo on a
> >>>product?
> >>
> >>no, it's just a matter of paying whatever royalty payment goes to
> >>the USB people, hence the crappy designs
> >
> >     Absolutely untrue, Amaury.
> >
> >     The USB-IF -- unlike the Firewire people -- don't charge any
> >     per-port royalties.  Before a device can use the USB logo, it
> >     must pass a very thorough set of compliance and interoperability
> >     tests.
>
> well, it's sorta similar in the end, how much are those tests ?

Amaury:

The testing is free.  Details, if you're interested, are at:

   http://www.usb.org/developers/compliance/

If you read the information there, you'll see that the reality --
three days of electrical/protocol/interoperability/user-experience
testing -- is very different from the situation that you imagined, in
which a manufacturer could put the USB logo on a crappy design simply
by paying a royalty.

-Andy

=== Andrew Warren -- aiw@cypress.com
=== Principal Design Engineer
=== Cypress Semiconductor Corporation
===
=== Opinions expressed above do not
=== necessarily represent those of
=== Cypress Semiconductor Corporation

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