Re: [Qemu-devel] [RFC PATCH 1/5] qdev: Create qdev_get_dev_path()

Paul Brook
2010-06-15T13:19:58Z

> > Every hotplug-capable bus must have a proper addressing scheme, I think
> > this is a reasonable and achievable requirement. Then we don't need
> > instance numbers for those buses.
>
> What about USB?

USB has useful device addresses (physical ports).
These aren't used by most of the higher-level protocols (logically USB is a
flat bus structure), but the physically tree topology is still there if you
look hard enough.

Paul