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5c2b9c61ae
Add support for boost-up register of usb251xb hub. boost-up property control USB electrical drive strength This register can be set: - Normal mode -> 0x00 - Low -> 0x01 - Medium -> 0x10 - High -> 0x11 (Normal Default) References: - http://www.mouser.com/catalog/specsheets/2514.pdf p29 Reviewed-by: Richard Leitner <richard.leitner@linux.dev> Signed-off-by: Tommaso Merciai <tomm.merciai@gmail.com> Link: https://lore.kernel.org/r/20220128181713.96856-1-tomm.merciai@gmail.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.