On Sat, 17 Oct 2020 at 16:23, ToddAndMargo via users <users@lists.fedoraproject.org> wrote:

On 10/17/20 12:14 PM, George N. White III wrote:
> Doesn't look like linux is supported.

Hi George,

I asked them about it.  This is what they responded
(He misspelled that last modprobe):



> Sorry for the delay, Linux isn't exactly my expertise, so it took a little long to verify the Parallel-PCIe in Fedora 32 (Workstation Edition) 64-bit.
>
> I didn't do the full installation, so my testing is limited to the Live version which I ran off OS off a USB Flash Drive.
>
> That being said, the Parallel PCIe card does appear to work in the OS. It doesn't detect automatically like our PCI cards do, however I was able to reconfigure the port, as substitute user, with the following commands:
>
>> modprobe -r lp
>> modprobe -r parport_pc
>> modprobe parport_pc io=0x378,0xee00 irq=7,11
>> modprode lp
>
> Once configured I was able to detect both a HP Laser Jet and an old Epson dot matrix printer and was able to dump a print job to the Epson.
>
> The Laser Jet appears to have given up the ghost long ago, so I couldn't use it to test the port in Fedora, but I don't believe that was an issue with our card.
>
> Hopefully that helps,

You might get better help from linuxcnc.org

https://forum.linuxcnc.org/27-driver-boards/34393-pcie-parallel-cards-what-chipset 

You might be able to get the chipset by looking at the label of the big IC's



-T
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--
George N. White III