oups voila plutot la commande que j'aurais dû tapper:
ioreg -w 0 -l | grep pci14e4,4318
qui me donne ceci:
| | | | "IONameMatch" = ("pci14e4,4318","pci106b,4e","pci14e4,4320","pci14e4,4324","pci14e4,4325")
| | | +-o pci14e4,4318@0 <class IOCardBusDevice, registered...