NI_6220 comedi

[Sebas Inc]

I have NI 6220:

version code: 0x00074c
driver name: ni_pcimio
board name: pci-6220
number of subdevices: 14

subdevice = 7; ---> type = DIgital I/O ---- (16 channels)
When i execute "comedi_dio_write(device,subdevice, i,1)" and after i
put tester in this pin, i always see 0Volts.

And "comedi_get_write_subdevice(device);" --> the result is -1.

any suggestions?

Thank you