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6062cd20cb
Add support for pressure and temperature rising threshold events. For
both channels *_en and *_value (in raw units) attributes are exposed.
Since in write_event_config() the ctrl_reg1.active and ctrl_reg4
are modified, accessing the data->ctrl_reg{1,4} in set_trigger_state()
and write_event_config() needs to be now guarded by data->lock.
Otherwise, it would be possible that 2 concurrent threads executing
these functions would access the data->ctrl_reg{1,4} at the same time
and then one would overwrite the other's result.
Signed-off-by: Antoni Pokusinski <apokusinski01@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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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 reStructuredText 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.