NI-DAQ 6024E from Chuck Haines on 2003-06-04 (gmane.linux.comedi)

From: Chuck Haines <chaines_at_ece.wpi.edu>
Date: Wed, 4 Jun 2003 09:59:55 -0400 (EDT)

I'm trying to write some software to read from the digital I/O on the NI 
6024E.  I'm running Slackware 9 on kernel 2.4.19 custom compiled from 
kernel.org.  The comedi and comedilib files are installed and working 
since the demo progarms work.

When I run my program i get an invalid arguement error when running the 
following line of code:
nError = comedi_dio_config(card, subdev, chanStart, COMEDI_INPUT);
card is the opened comedi card, subdev is a unsigned int as well as 
chanStart.  subdev is set to 5, the digital subdevice and the chanStart is 
set to 0.  Any help in this matter would be much appreciated.  I can send 
my source code upon request.


also, the return values for the funtions seem to be returning as 1 rather 
than -1 for errors.  I'm using an int to get the return value.

thanks,
Chuck

Received on 2003-06-04Z12:59:55