I got this answer from linux.kernel list:
>Alexandru Damian <firstname.lastname@example.org> wrote in message
> 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,
> 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 :))
I can uderstand that I wand to use parallel port not as described in the
specifications. But maybe there are some setings or parametrs in the Linux
kernel (or parport module) that I can manipulate?
There should be something, why it works (in the way I expect) on
my ECS K7S5AL board on others O.S (FreeBSD or WinXP) and
on others boards (also under Linux), but doesn't want with only
this ECS K7S5AL and Linux?
I need to control a very simple device,
so I don't want to put there much electronics which will
work which "edge triggered" logic.
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This archive was generated by hypermail 2b29 : Tue Apr 15 2003 - 15:14:37 EDT