I have been working on a USB CDC Subset driver and to this point have
been using a fake hardware address for the ethernet interface. Unlike
a full CDC implementation the subset does not provide a descriptor
containing a hardware address. Left to my own devices I would
continue with the current implementation but I would like to release
the driver. To this end I'm looking for advice on how to generate or
otherwise get a hardware address.
I have considered a plist entry that the driver could use to get the
address. This solution is ugly from a end user perspective and breaks
down when a user has more than one device using the driver.
Generating a 40-bit random number is another alternative but each
time a new hardware address is used the network interface name
increments. Again this is bad for the user.
Using the USB address along with some static data is my last idea. As
long as the user does not move USB ports I think the address will
stay the same.
Any ideas would be appreciated.
Thanks,
Jesse
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