Re: Remove plip(4)?

[T <bobs%thelibertytree.org@localhost>]

On Sun, 27 Nov 2022 20:58:27 -0500 (EST), Mouse wrote:

>>>>     SLCTIN      17 - 17
>>> This looks dubious to me.
>>> [...]
>> The pin 17 connection also seem odd to me after reading more about it. 
>> [...] and it does seem that in the extended modes (EPP/ECP) the
>> functionality of some pins are changed: [...]
> 
> Is EPP/ECP relevant to PLIP?  The plip(4) manpages I have at ready hand
> (5.2 and 9.0) specifically disclaim any such need:
> 
>      Data is transferred 4 bits at a time, using the printer status
>      lines for input: hence there is no requirement for special
>      bidirectional hardware and any standard AT-compatible printer port
>      with working interrupts may be used.
> 
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You are correct, they are not needed for the implementation used here, 
there are some other ones that do use it IIRC.

I picked up another random thrift shop find that looked like a LapLink 
cable, but is actually just a straight-through parallel cable, oh well.

After looking over this thread again, the simple solution may be to 
physically remove pin 17 on both ends of the cable I already have. Seems 
simple enough and would make it compliant with the spec in the NetBSD page.