filip wrote:
>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's normal, since the parallel -port specification clearly states that
the port doesn't maintain
the pins voltage more than a minimum mandatory delay, and while setting,
the
state is undefined.
>It is strange because everything works corect on my old PC (Pentium160).
>
That was broken hardware, it didn't meet the specifications :))
>
>Regards,
>Filip
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This archive was generated by hypermail 2b29 : Tue Apr 15 2003 - 22:00:36 EST