Re: [PATCH 3/3] USB: driver for Freescale QUICC Engine USB Host Controller

Sergei Shtylyov
2008-09-23T21:32:22Z

Hello.

Anton Vorontsov wrote:

>>> This patch adds support for the FHCI USB controller, as found
>>> in the Freescale MPC836x and MPC832x processors. It can support
>>> Full or Low speed modes.
>>>
>>> Quite a lot the hardware is doing by itself (SOF generation, CRC
>>> generation and checking), though scheduling and retransmission is on
>>> software's shoulders.
>>>
>>> This controller does not integrate the root hub, so this driver also
>>> fakes one-port hub. External hub is required to support more than
>>> one device.
>>>
>>> ...
>>>
>>>
>> Please, no.
>>
>
> What exactly 'no'? ;-)
>

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...

WBR, Sergei