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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. This patch handles USB transaction errors on address command completion events. 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 Suggested-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.