[Oberon] Re. (3) How is ETHO with USB?

Chris Glur easlab at absamail.co.za
Mon Aug 23 05:31:16 MEST 2010

CG wrote:
> > Only PCs which have had the special driver installed, will see the
> > device's true ID. But only the PCs which don't have the device's
> > driver installed, need to know that a standard driver would work.
> ....
> > I'd be happier if I knew how the algorithms worked at a lower level
> > level.
> The Huawai modem is able to announce itself as two different
> devices: A CD-ROM or a Modem.
Joerg wrote:-
> Both identifications are done according to USB standards:
> Firstly, it announces itself as standard CD-ROM. By
> doing so the modem can provide its own drivers without sending
> a real CD-ROM to the customer. If you don't need the CD-ROM
> anymore, send a standard "eject" command to the "virtual" USB CD-ROM.
> When it receives the "eject" command, it re-announces itself
> as modem. (Obviously, the driver automates this "eject" mechanism)
> As I don't have such a device, I can't try it myself.

Yes, I've read that and will try it when I get back to the device
location.  Although it sounds too easy, considering the much inet 
discussion on the problem.


== Chris Glur.

More information about the Oberon mailing list