linux-kernel - Re: [PATCH] usb: merge the two dummy

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Date:	Thu, 14 Apr 2011 19:45:35 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Felipe Balbi <balbi@...com>,
	Tanya Brokhman <tlinder@...eaurora.org>, gregkh@...e.de,
	linux-arm-msm@...r.kernel.org, ablay@...eaurora.org,
	"'open list:USB GADGET/PERIPH...'" <linux-usb@...r.kernel.org>,
	'open list' <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] usb: merge the two dummy_hcds into one

* Alan Stern | 2011-04-14 11:45:34 [-0400]:

>In fact, the support for USB-3 HCDs is currently in flux.  Sarah Sharp 
>has submitted a whole bunch of patches to allow for the creation of 
>primary and secondary HCDs, representing the USB-2 and USB-3 root hubs 
>of an xHCI controller.  dummy-hcd should use the same mechanism.

Yeah, after I merged those two I've seen that I can't assign USB2 and
USB3 at the same time so I looked what xhci is doing in this case.

>This will means creating only one host-side platform device, and then 
>creating two usb_hcd structures below it.  Tanya's design should be 
>based on Sarah's work.

Yes, it makes sense.

>Alan Stern

Sebastian
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