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Mainline Linux tree for various devices, only for fun :)
ade2e3a148
Most transfer events have a TRB pointer indicating which TRB caused the event. In the case of streams, transfer events such as USB Transaction error may have its TRB pointer set to zero. driver won't know which stream or what TRB on that stream caused the error, but it can issue a soft reset to recover the transfer. A soft reset will clear the host side halt of the endpoint without clearing Data toggle or sequence number, and let the transfer continue from where it halted. see xhci section 4.12 streams and 4.6.8.2 soft retry. USB Transaction errors with a zero TRB pointer are seen with UAS usb devices. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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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.