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       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 parameter direction.  Valid  directions  are  COMEDI_INPUT  or

       Depending on the capabilities of the hardware device, multiple channels
       may be grouped together to determine direction.  In this case, a single
       call  to  comedi_dio_config()  for any channel in the group will affect
       the entire group.

       If sucessful, 1 is returned, otherwise -1.

                                28 October 2007