Greg Troxel <gdt@ir.bbn.com> writes:

> ehci(4) says:
> 
>      The support for hubs that are connected with high speed upstream
>      and low or full speed downstream (i.e., for transaction
>      translators) is limited.
> 
> I wonder if this is the issue, with the hub in the disk having a
> low/full side for the hid for the front panel buttons.

It's mostly functional these days. I've successfully used both full-
and high-speed storage devices at the same time behind a usb2 hub.

(or, "I'm sure there are bugs, but it's more than just that.")

        - Nathan