In message <200508091916.PAA20499@Sparkle.Rodents.Montreal.QC.CA>, der Mouse wr
ites:
>> If they know they're at different IDs, the higher one will always get
>> priority during arbitration.
>
>Ah, there's the difference, then: the reason the swapped-wires case
>doesn't work is that they disagree over the ordering between their IDs.
>

I don't even think you need to swap wires -- it's a bus; all devices, 
including the host adapter, are equal, as I understand it.

		--Steven M. Bellovin, http://www.cs.columbia.edu/~smb