Hi all,

 I have ehci host controller hardware with UHCI
companion controllers in my PC And I am running
linux-2.6.9.When I am starting my PC both ehci and
uhci host controller drivers are loaded.So If I
connect any low speed or full speed device uhci host
controller driver is taking care of that device.

But I have a doubt that ehci should have an internal
port routing logic which will tell the companion
controllers to deal with the full speed or low speed
devices.If this is the case , then is it necessary
that uhci host controller driver is needed for those
companion controllers (or) the ehci driver code itself
is having the logic to talk to the low speed or full
speed devices.

Does both the host controller drivers needed incase of
EHCI host controller?

Thanks in Advance
  Naveen.M


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