Hello, http://hilscher.com/products_group_pccards.html provide hardware to communicate over a lot of fieldbus systems. It should fit under: http://linuxdriverproject.org/twiki/bin/view/Main/DriversNeeded#Measurement_and_Automation They provide a Linux driver under GPL for their hardware. But the maintenance could be better. For example we had to add support for the PCMCIA version of their cards. See thesis: http://pvbrowser.de/pvbrowser/doc/ibrin/Master_Thesis.pdf I asked David Tsaava DTsaava [at] hilscher.com to contact you concerning about your help. He is the developer of the linux driver at hilscher and he now has included our PCMCIA part into their driver. Currently their driver only supports 32 bit linux. And thus i think, it would be best, if you could take over maintenance of the driver. Could you please contact http://hilscher.com ? Best regards: http://pvbrowser.org