06342d3f97
The ROHM BU27034 light sensor has two data channels for measuring different frequencies of light. The result from these channels is combined into Lux value while the raw channel values are reported via intensity channels. Both of the intensity channels have adjustable gain setting which impacts the scale of the raw channels. Eg, doubling the gain will double the values read from the raw channels, which halves the scale value. The integration time can also be set for the sensor. This does also have an impact to the scale of the intensity channels because increasing the integration time will also increase the values reported via the raw channels. Impact of integration time to the scale and the fact that the scale value does not start from '1', can make it hard for a human reader to compute the gain values based on the scale. Add read-only HARDWAREGAIN to help debugging. Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://patch.msgid.link/ec349847cc994f3bd632e99b408a31e7c70581d0.1720176341.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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.