sending bytes to parallel port

[Grant Edwards]

On 2006-07-29, Timothy Smith <timothy at open-networks.net> wrote:

>> I'd particularly recommend taking a look at the pyparallel
>> module found here:

> yes, i did try pyparallel however it will not install on
> freebsd, setup.py errors.

Ah. I guess freebsd wasn't one of the systems listed on the
pyparallel page -- I should have paid closer attention.

> and yes i've done quite a bit of googling, i never expected it
> to be this difficult. i've done work with serial ports before.
> never parallel but.

Serial ports on PCs are pretty standardized as 16550 UARTs, and
The Unix serial port API was mostly nailed down years ago.

There are at least three different schemes for parallel ports,
and not everybody implements those identically even if they do
claim to be one of the three.  Many motherboard chipsets claim
to do do all three.  On top of that, there doesn't seem to be a
common Unix prallel port API.

-- 
Grant Edwards                   grante             Yow!  Is this ANYWHERE,
                                  at               USA?
                               visi.com