Hi,
refered to the comedi function reference, the counters are not yet implemented.
(For more info, please contact www.comedi.org)
But there are a few example code within the DDK-Driver, depending the Operating System and Software.
Maybe you do not need DDK if you use compatible OS for DAQ. Then you can use the Traditional-DAQ-C-Reference help.
(Note for all Linux user: Next year the DAQmx-Base is coming out for Linux.)
Regards
R.T.
Technical Support
NI Germany