... then the root hub emulation is completely pointless.No one-port hubs I guess -- they are pointless. Though e.g. MUSB driver creates one -- I guess to impersonate a transaction translating high-speed hub...What exactly 'no'? ;-)This controller does not integrate the root hub, so this driver alsoPlease, no.
fakes one-port hub. External hub is required to support more than
one device.
...
It isn't. We always should emulate the root hub. The root hub
is part and parcel of any USB Host. Even the one-port one.
Hm, maybe that's what USB core thinks (because UHCI/OHCI/EHCI all have it) but e.g. MUSB doesn't have the root hub registers...