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Message-ID: <48D96052.6090005@ru.mvista.com>
Date: Wed, 24 Sep 2008 01:32:02 +0400
From: Sergei Shtylyov <sshtylyov@...mvista.com>
To: avorontsov@...mvista.com
Cc: Andrew Morton <akpm@...ux-foundation.org>,
dbrownell@...rs.sourceforge.net, greg@...ah.com,
linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
linuxppc-dev@...abs.org, leoli@...escale.com, timur@...escale.com
Subject: Re: [PATCH 3/3] USB: driver for Freescale QUICC Engine USB Host Controller
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
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