[Linux-parport] Parallel PCI cards

Joe Krahn krahn at niehs.nih.gov
Tue Apr 27 14:04:46 EDT 2010

Leopold Palomo Avellaneda wrote:
> Hi,
> I have received a message in a forum about that Linux does not have support 
> for parallel port addon cards. Something about a bug in the Linux kernel which 
> does not allocate the interrupt properly for PCI addon parallel cards. So 
> currently PCI addon parallel cards are not supported under Linux.
> Please, some of you can confirm this? I'm planning to buy this card [1] and I 
> would like to know if it works under Linux or not.
> Regards,
> Leo
> [1] http://www.perle.com/products/serial-parallel-pci-card/SPEEDLE1P-1-port-
> parallel-pci-card.shtml

The only problem I know of is that external level-triggered cards. I
think those only exist on old PCI cards. But, I am not a parport guru.

Perle looks like a good choice, because they provide Linux source code
for their multi-port serial card. If their parallel card needed
something to work in Linux, they probably would have provided source code.


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