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Re: [PATCH] usb: xhci: fix config fail of FS hub behind a HS hub with MTT

From Mathias Nyman <mathias.nyman@intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH] usb: xhci: fix config fail of FS hub behind a HS hub with MTT
Date 2015-12-04 13:10 +0100
Message-ID <qBXlx-2ur-27@gated-at.bofh.it> (permalink)
References <qBvpg-1dD-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 03.12.2015 08:14, Chunfeng Yun wrote:
> if a full speed hub connects to a high speed hub which
> supports MTT, the MTT field of its slot context will be set
> to 1 when xHCI driver setups an xHCI virtual device in
> xhci_setup_addressable_virt_dev(); once usb core fetch its
> hub descriptor, and need to update the xHC's internal data
> structures for the device, the HUB field of its slot context
> will be set to 1 too, meanwhile MTT is also set before,
> this will cause configure endpoint command fail, so in the
> case, we should clear MTT to 0 for full speed hub according
> to section 6.2.2
>
> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
> ---

Thanks, patch added to queue

-Mathias
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[PATCH] usb: xhci: fix config fail of FS hub behind a HS hub with MTT Chunfeng Yun <chunfeng.yun@mediatek.com> - 2015-12-03 07:20 +0100
  Re: [PATCH] usb: xhci: fix config fail of FS hub behind a HS hub  with MTT Mathias Nyman <mathias.nyman@intel.com> - 2015-12-04 13:10 +0100

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