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On read, master should send 31 MSB of the register (only even values are ever used), followed by a 1 to indicate read. Then, reading two bytes, the device will output the register's value. On write, master sends 31 MSB of the register, followed by a 0 to indicate write, followed by two bytes containing the register value. Flexibilis' documentation (version 1.3) specifies the opposite polarity (#read/write), but the scope indicates that it is, in fact, read/#write. Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> Reviewed-by: George McCollister <george.mccollister@gmail.com> Link: https://lore.kernel.org/r/20210202191645.439-1-tobias@waldekranz.com Signed-off-by: Jakub Kicinski <kuba@kernel.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.