Robert Glinka (rglinka@sun.iwu.edu)
Tue, 26 Oct 1999 10:26:30 -0500 (CDT)
Yes and no, a parallel port has the ability to read _bytes_ back from
something like a printer or a camera, however, a unidirectional port does
have the ability to read a couple bits at a time, for things like out of
paper errors, or a paper jam in an old printer.
Thus allowing a QuickCam to work on a unidirectional port.... but....
very.... slowly...
-rob
On Tue, 26 Oct 1999, Benjamin Grimes wrote:
>
> This brings up an interesting point... Isn't a bidirectional parallel port
> a port that has the ability to read as well as write, whereas a
> unidirectional port one who can only write?
>
> -----Original Message-----
> From: Philip Blundell [SMTP:pb@nexus.co.uk]
> Sent: Tuesday, October 26, 1999 5:06 AM
> To: Tim Waugh
> Cc: Jeremy Bair; Robert Glinka; linux-parport@torque.net
> Subject: Re: [PARPORT] Parport?
>
> >They aren't bidirectional, which is probably why you're having problems.
>
> QuickCam doesn't need a bidirectional port. But I've never managed to get
> either of my cams to work on a UDB either, I must admit.
>
> p.
>
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This archive was generated by hypermail 2.0b3 on Tue 26 Oct 1999 - 11:29:47 EDT