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4f5e81a7a6
The Dell laptop I have has an ACPI that sends 0xCB and 0xCC on entering tablet mode. On exiting tablet mode it sends 0xCA and 0xCD. Based on: http://www.traby.de/medion/DSDT/dsdt.dsl https://gist.github.com/jprvita/5737de3cbb670e80973b7d4e51c38ab6 https://osdn.net/projects/android-x86/scm/git/kernel/commits/ 7cbe5a330687b851f32dd9f1048a6ce182d0ff44 It appears that 0xCA and 0xCB are about dock mode, which for my convertible laptop seems questionably tied to whether I've put the laptop in tablet or laptop mode. I previously proposed no-oping 0xCA and 0xCB but this revised change attempts to add support for detecting dock mode--this detection will essentially be broken for my laptop (the main workaround would be for 0xCA and 0xCB to be used to provoke a query of the VGBS method that reports the current dock & tablet mode [which is accurately reported on my laptop but based on the prior workarounds in the driver it apparently can't be trusted for all systems]). Signed-off-by: Matt Delco <delco@chromium.org> Cc: Darren Hart <dvhart@infradead.org> Cc: Andy Shevchenko <andy@infradead.org> Cc: platform-driver-x86@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: AceLan Kao <acelan.kao@canonical.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.