6220 comedi_calibrate fails

Hi,
Anybody get the NI 6220 M series card to work?  comedi_calibrate returns
init_setup() failed for pci-6220,
but board_info works fine.  I'm guessing from perusing old message board
posts that support for these cards is still lacking.  Does anyone have even
analog input and output working for these cards?

-Jon Weisz