linux-kernel - Re: [PATCH] usb: gadget: composite: fill bcdUSB as 0x0320 for SuperSpeed or higher speeds

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Date:   Wed, 09 May 2018 14:33:13 +0300
From:   Felipe Balbi <felipe.balbi@...ux.intel.com>
To:     Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Matthias Brugger <matthias.bgg@...il.com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH] usb: gadget: composite: fill bcdUSB as 0x0320 for SuperSpeed or higher speeds


Hi,

Chunfeng Yun <chunfeng.yun@...iatek.com> writes:
> The USB3CV version 2.1.80 (March 26, 2018) requires all devices
> ( gen1, gen2, single lane, dual lane) to return the value of 0x0320
> in the bcdUSB field

this sounds really odd. What happens when I get a USB 3.1 compliant
device off-the-shelf and run it through USB3CV? will it fail now?

Care to share a screenshot or the raw html of the test result?

-- 
balbi

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