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Some systems requires different max PCM Gains settings than the default. The current default value, when running firmware is 17.5 dB, which is used for all systems. Some systems require lower values. Value when running without firmware is 4.5 dB and remains unchanged. Since the gain value is dependent on Tuning and Firmware, it can change, so it cannot be saved in _DSD. Instead we can store it inside a configuration binary file alongside the Firmware and Tuning files. The gain value increments in steps of 1 dB, with value 0 representing 0.5 dB. The max value is 20, which corresponds to 20.5 dB. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Message-ID: <20240411110813.330483-2-sbinding@opensource.cirrus.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.