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4dfd10351e
Currently the RTS delays set via device tree are not clamped to a maximum value although the device tree bindings documentation for RS485 claims that only a maximum of 1000 msecs is allowed. So clamp the values to avoid arbitrary high delay settings. However clamp the values to 100 instead of 1000 msecs to be consistent which the maximum that is allowed when setting the delays from userspace via the UART ioctl TIOCSRS485. Signed-off-by: Lino Sanfilippo <l.sanfilippo@kunbus.com> Link: https://lore.kernel.org/r/20220710164442.2958979-6-LinoSanfilippo@gmx.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| README | ||
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.