Hi!
I own:
02:00.0 Ethernet controller [0200]: 3Com Corporation 3c905 100BaseTX [Boomerang] [10b7:9050]
It's unsupported:
---[code]---
Error: No supported PCI device found.
Error: Programmer initialization failed.
---[/code]---
I would love to help You to get it to work with flashrom.