On 01.09.2017 04:41, Lu Baolu wrote:
Hi Mathias,
Xhci driver handles USB transaction errors on transfer events,
but transaction errors are possible on address device command
completion events as well.
The xHCI specification (section 4.6.5) says: A USB Transaction
Error Completion Code for an Address Device Command may be due
to a Stall response from a device. Software should issue a Disable
Slot Command for the Device Slot then an Enable Slot Command to
recover from this error.
The related discussion threads can be found through below links.
http://marc.info/?l=linux-usb&m=149362010728921&w=2
http://marc.info/?l=linux-usb&m=149252752825755&w=2
This patch set includes some fixes in xhci_disable_slot() as well
which will be used to handle USB transaction error on address
command.
This patch set is based on the top of for-usb-next branch in your
xhci tree.
Best regards,
Lu Baolu
Looks good, applying
Thanks
-Mathias
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