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Mika Westerberg
fa1653d99c
This may be returned for example when accessing some of the vendor specific capabilities. It is not fatal by any means so instead of WARN() just log it as debug level. The caller gets error back anyway and is expected to handle it accordingly. Signed-off-by: Mika Westerberg <[email protected]> Reviewed-by: Greg Kroah-Hartman <[email protected]>
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.