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Mika Westerberg
5bf722df5d
With DMA tunnels it is possible that the service using it does not require bi-directional paths so make RX and TX optional (but of course one of them needs to be set). Signed-off-by: Mika Westerberg <[email protected]> Acked-by: Yehezkel Bernat <[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.