paralel port - doesn't keep pins states

filip (filip_@op.pl)
Mon, 07 Apr 2003 1:16:26 +0200


Hello,

I hope it is the right place to ask about my problem...

I want to use /dev/lp0 (lp module) on my PC for controlling
external devices.
The problem is when I wtire 1 byte to /dev/lp0, paralel port
keeps this state just for few ms...
(I made special plug - so the is no problem with handshake - details on:
http://www.hut.fi/Misc/Electronics/circuits/nullprint.html)

It is strange because everything works corect on my old PC (Pentium160).

Regards,
Filip
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