Read 1-17 pins on LPT

Hello?.all,

I am trying to read parallel port, all the pins from 1-17. I am using libs Parapin

Can some one agree with me that; it is possible to use all the pins on parallel port as an input pins 1-17????

I can able to read all the pins except 1, 11, 14, and 17

Any idea what can be the problem????

I tried using parapin input test program, but no luck.

So I just want to conform about reading all the pins on parallel port ??..

#include #include #include

#include "parapin.h"

int main(int argc, char *argv[]) { int i;

if (pin_init_user(LPT1) < 0) exit(0);

pin_input_mode(LP_DATA_PINS); pin_input_mode(LP_SWITCHABLE_PINS);

printf("\nstarting\n"); for (i = 1; i

It's been a long time since i've done any lpt programming, but google just told me the lpt pin-outs are:

1 STROBE (Strobe) active low output 11 BUSY (Busy) active low input 14 AUTO-FEED (Auto-Feed) active high output 17 SLCT IN (Select In) active low output

the different printer port modes change bi-directionality on the data pins, but i'm pretty sure those 4 stay the same, so you can't read 1, 14 or 17.

--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Damion de Soto - Software Engineer  email:     damion@snapgear.com
SnapGear - A CyberGuard Company ---    ph:         +61 7 3435 2809
  | Custom Embedded Solutions          fax:         +61 7 3891 3630
  | and Security Appliances            web: http://www.snapgear.com~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ---  Free Embedded Linux Distro at   http://www.snapgear.org  ---