channel config

Hello!
I'm writing a program to control a few digital pins on a IO-card using  
comedi.
To configure the pins (set them to output, and put them low), I do this:

for (ch=0; ch<24; ch++){
  printf("ch%d: (%s, %s).\t", ch+1, comedi_dio_config(device, 0, ch,  
COMEDI_OUTPUT)==1? "output": "error", comedi_dio_write(device, 0, ch,  
0)==1? "low" : "error");

To check if this works, I put them high instead - but nothing happened on  
the pins. Is this an invalid use of the comedi functions?
thanks,
carl

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Received on 2005-02-18Z12:55:40