Hi,
I have attached a NES-pad into my parport in Linux 2.4.0. The pad works
fine, except for one thing: I can only press two (2) buttons at a time.
When I try to press more than two buttons simultaneously, some of the
buttons will go off.
I tried this NES-pad in my friend's computer also: it did *nothing* on his PC.
Then, I suddenly got an idea (don't ask how): I plugged the NES-pad into my
friend's parport scanner, which had a second parport for plugging e.g. a
printer into it, so that one can use the scanner and the printer while
having only one parport behind the PC box. Imagine this: the NES-pad worked
*perfectly* when plugged via the scanner. It worked for both me and my friend.
I tested the scanner- and PC parports with a voltage meter and here are the
results for me and my friend:
My case:
========
Parport | Voltage | Current | NES-pad works?
--------------------------------------------
PC | 4.75V | 148 mA | Not correctly.
Scanner | 4.30V | 148 mA | Yes, perfectly.
My friend's case:
=================
Parport | Voltage | Current | NES-pad works?
--------------------------------------------
PC | 3.00V | 148 mA | Not at all.
Scanner | 2.15V | 148 mA | Yes, perfectly.
Scanner is a Mustek ScanMagic 600CP, a parallel port scanner.
And now, the guestion: Would anyone have any idea why the NES-pad won't
work in a normal parallel port as I and my friend have? How to make it
work? Does the scanner do some "magic" as its name makes me assume?
Thanks.
J-P
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This archive was generated by hypermail 2b29 : Sun Feb 18 2001 - 06:34:20 EST