d557a26b80
C-NET(PC) has a cfe at location 1 that has both an odd irq mask (it matches pc98 machines, so maybe it was a flag for pc98 operation) as well as a memory map. Since this driver doesn't know how to cope, we start with cfe2, which is purely an I/O space mapped and that seems to make it work. I say 'seems' here, because the card I have doesn't seem to have the right dongle for full testing...