Mario,
Open Source drivers for our DAQ products are developed by the Comedi project. It should be noted that these drivers may not contain the full functionality of the NI-DAQ driver available for E Series devices under the various Windows and Mac operating systems.
For information regarding the Comedi Project please see http://stm.lbl.gov/comedi. Support for the Comedi drivers is available through the Comedi mailing list. Please contact the Comedi mailing list for questions regarding this Open Source driver.
For more information on National Instruments Measurement and Automation products for linux, see http://www.ni.com/linux.
Regards,
Justin Britten
Applications Engineer
National Instruments