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The device posture subsystem (POS) can provide different posture sources. Different sources can provide different posture states and sources can be identified by their ID. For example, screen posture of the Surface Laptop Studio (SLS), which is currently the only supported source, uses a source ID of 0x03. The Surface Pro 9 uses the same subsystem for its Type-Cover, however, provides different states for that under the ID 0x00. To eventually support the Surface Pro 9 and potential future devices, we need to properly disambiguate between source IDs. Therefore, add the source ID to the state we carry and determine the tablet-mode state (as well as state names) based on that. Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com> Link: https://lore.kernel.org/r/20230304194611.87770-2-luzmaximilian@gmail.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.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 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.