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On the Realtek high-speed Hub(0bda:5487), the port which has wakeup enabled_descendants will sometimes timeout when setting PORT_SUSPEND feature. After checking the PORT_SUSPEND bit in wPortStatus, it is already set which means the port has been suspended. We should treat it suspended to make sure it will be resumed correctly. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Chris Chiu <chris.chiu@canonical.com> Link: https://lore.kernel.org/r/20210514045405.5261-2-chris.chiu@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.