Re: Parallel Port: Settings PINs on?

[Jan-Benedict Glaw <jbglaw@lug-owl.de>]

On Wed, 2005-06-01 12:01:50 +0200, Nico Schottelius <nico-kernel@schottelius.org> wrote:
> Is it possible to select (in userspace) which pins
> should be enabled or do I have to write a kernel driver
> for that?

There's already a driver available for exactly this purpose: ppdev.

At http://lug-owl.de/~jbglaw/software/steckdose/steckdose.c is a program
I wrote for controlling a shift register (serial in, parallel out) with
relays attached (to switch on/off computers or to reset them). This
should help you for a start. (Basically, open/claim the port and set the
bits of the DATA port via an ioctl())

MfG, JBG

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