Even if you could manipulate the pins of a USB controller itself
(which I doubt), I think you'll find that most USB cards have a USB
hub chip on them, which the physical ports are connected to. USB hubs
are smart devices that actually inspect the traffic before relaying
it, IIRC, so simply asserting a 1 or 0 on the DATA+/- line at the
controller won't accomplish anything in the end.

On Tue, 17 Aug 2004 03:30:51 -0300, Octavio Nogueira
<nogueira@tato.ind.br> wrote:
> Is there any way to access the A end B data pins
> of a USB port? Just like we do with the printer port?
>=20
> Regards,
>=20
> Octavio Nogueira
> Tato Equipamentos Eletr=F4nicos Ltda
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> BASIC Step - O microcontrolador mais f=E1cil do mercado
> BASCOM - O mais poderoso compilador BASIC para ATMEL
> http://www.tato.ind.br
> ProPic tools - low cost PIC programmer and emulator
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> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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>=20
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>=20


--=20
-Randy Glenn
Computer Eng. and Mgt. Year IV, McMaster University
Chair, McMaster IEEE Student Branch

randy.glenn-at-gmail.com - glennrb-at-mcmaster.ca
randy.glenn-at-computer.org - randy_glenn-at-ieee.org
http://www.randyglenn.ca

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