David VanHorn <PICLIST@mitvma.mit.edu> wrote:

> > > my device never needs to be the host, or master, but it needs
> > > to talk to usb-otg hosts.
> >
> > Then your device doesn't need a "USB OTG" chip; it can be built
> > using a regular USB peripheral chip.  So long as the OTG host has
> > a driver for it, you'll be fine.
>
> how would that happen?
>
> would my chip vendor need to provide this, and it somehow gets
> loaded to the otg peripheral?

    No, the USB OTG spec includes no facility for copying drivers
    from peripherals to hosts.

    OTG isn't nearly as easy to use or universally-compatible as you
    seem to believe.  Why do you think you need OTG compatibility,
    anyway?

    -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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