On Mon, 11 Aug 2003, Gianfranco Risaliti wrote:
> >IIRC net45xx's don't have a parallel port.
> Net45xx is built with elan sc520 and it has a gpio interface inside,
> Soekris engineers have shared 14 pin of élan gpio into connector jp3
Although it's a 14-pin *connector*, only 8 *signals* appear on it. And
two are shared with the "signal interface" of the power connector, so you
may need to avoid them if you want the other use available.
> You can configure gpio to switch on of their bit as a lpt port...
It has nowhere near enough signals to function directly as a parallel
port, although it would be possible to add some logic to implement a
parallel port using multiple reads and/or writes.
> #define MMCRBASE 0xFFFEF000
It's probably considered better form to access it via /dev/elan-mmcr,
though admittedly one needs to dig through more "documentation" to do it
that way. If the mmcr driver supports mmap, only the setup would be