[PATCH] usb: xhci: fix config fail of FS hub behind a HS hub with MTT
Mathias Nyman
mathias.nyman at intel.com
Fri Dec 4 04:06:30 PST 2015
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 at mediatek.com>
> ---
Thanks, patch added to queue
-Mathias
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