[Linux-parport] True Parallel Port Interface for Bit-banging?
sf84 at laposte.net
Mon Nov 7 04:44:54 PST 2016
On 10/29/2016 01:12 AM, Maciej S. Szmigiero wrote:
>> Would you mind sharing the laptop's model?
> This is Elitebook model 8570p.
That seems like a fairly recent laptop:
and it has a true parallel port? Thanks a lot for the pointer!
>> There are a bunch of
>> Elitebooks and maybe not all have the ports wired.
>> Does your laptop has the Parallel Port on the docking or on the laptop
> Only a serial port socket is built-it, parallel port socket is
> available only via a port replicator.
> According to description of this replicator it is compatible with
> a lot of different Elitebooks and Probooks:
> I wasn't able find any note in this replicator description that port
> availability depends on connected laptop model.
> You can try to search for particular laptop model schematics, even
> if it is available only for sale sometimes there is a preview
> page with block diagram which clearly show where the parallel port
> is connected (this is true for my laptop model for example).
> However, whether the port is on standard I/O address and interrupt
> line requires some more digging.
Thanks for the information.
>> Do you know the command to enable them thru PnP? Shouldn't loading
>> the kernel module be enough? Or is it the other way around and
>> enabling thru PnP triggers the kernel module load process?
> If you want to use them under Linux then everything should be taken
> care of by kernel's PnP support.
> It can be problem if you want to use them under pure DOS.
I see, thanks.
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