I am running Redhat 6.2 w/ kernel version 2.2.14-5.0. I successfully compiled the the pci-scan.c and tulip.c files, and placed them in the /lib/modules/2.2.14-5.0/net directory, and then issued: depmod -a When I issue the command: insmod tulip.o I recieve an error regarding unresolved symbols: pci_drv_unregister pci_drv_register Any help would be great! Thanks, Jason