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8f19501d87
When reading 16-bit volatile registers, the code uses a trick to determine if a temperature is consistent: It reads the high part of the register twice. If the values are the same, the code assumes that the reading is consistent. If the value differs, the code re-reads the second register as well and assumes that it now has correct values. This is only necessary for volatile registers. Add a parameter to lm90_read16() to indicate if the register is volatile to avoid the extra overhead for non-volatile registers. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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.