[Linux-parport] True Parallel Port Interface for Bit-banging?
Maciej S. Szmigiero
mail at maciej.szmigiero.name
Mon Nov 7 15:53:24 PST 2016
On 07.11.2016 13:44, Sebastian Frias wrote:
> 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?
It has parallel port on address 0x378/0x778, IRQ 5 by default which is
realized by Super IO chip.
In PnP config also available for selection are addresses 0x278/0x678,
0x3bc/0x7bc, IRQ 7 and ISA DMA channels 1 and 3.
Although I have never used this port personally it looks like what can
be considered a "true" parallel port.
> Thanks a lot for the pointer!
You are welcome.
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