Using another driver than intel igb

I am trying to load another ethernet driver. My machine have 2 Intel network cards
vendor     = 'Intel Corporation'
    device     = 'I350 Gigabit Network Connection'
    class      = network
    subclass   = ethernet interface cards.
I have FreeBSD 11.0 with that kernel built in igb(4) network drivers.
kldstat -v | grep igb
       113 pci/igb
I need to attach PCI bus of the network cards for my drivers but I could not got it. How to get it?
Last edited by a moderator:
What exactly are you trying to do? Why do you want to replace the existing drivers?