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dad74e18f7
This patch adds a check for if the rumble queue ringbuffer is empty prior to queuing the rumble workqueue. If the current rumble setting is using a non-zero amplitude though, it will queue the worker anyway. This is because the controller will automatically disable the rumble effect if it isn't "refreshed". This change improves bluetooth communication reliability with the controller, since it reduces the amount of traffic. Note that we still send a few periodic zero packets to avoid scenarios where the controller fails to process the zero amplitude packet. Without sending a few to be sure, the rumble could get stuck on until the controller times out. Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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.