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1b997aef4f
The current config comment for SERIAL_8250_FINTEK implies that this option is only needed when one wants to support RS485. As it turns out we also need to enable this option for RS232 support to function correctly on some variants. For example for variants such as the F71869AD attempting to use multiple RS232 ports simultaneously without this option enabled can result in data corruption. Signed-off-by: James Hilliard <james.hilliard1@gmail.com> Link: https://lore.kernel.org/r/20230521075046.3539376-1-james.hilliard1@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.