comedi_dio_config — change input/output properties of channel
#include <comedilib.h>
int comedi_dio_config( | comedi_t * device, |
| unsigned int subdevice, | |
| unsigned int channel, | |
unsigned int direction); |
The function comedi_dio_config configures individual channels
in a digital I/O subdevice to be either input or output, depending
on the value of direction. Valid directions are
COMEDI_INPUT or COMEDI_OUTPUT.
Depending on the characteristics of the hardware device, multiple
channels might be grouped together in hardware when
configuring the input/output direction. In this
case, a single call to comedi_dio_config
for any channel in the group will affect the entire group.