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7fc68653fc
Rather than creating batteries as part of the initial device probe, let's make the process lazy. This gives us the opportunity to prevent batteries from being created in situations where they are unnecessary. There are two cases in particular where batteries are being unnecessarily created at initialization. These are AES sensors (for which we don't know any battery status information until a battery-powered pen actually comes into prox) peripheral tablets which share HID descriptors between the wired-only and wireless-capable SKUs of a family of devices. This patch will delay battery initialization of the former until a pen actually comes into prox. It will delay battery initialization of the latter until either a pen comes into prox or a "heartbeat" packet is processed. Link: https://bugzilla.kernel.org/show_bug.cgi?id=217062 Link: https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/2354 Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Tested-by: Mario Limonciello <mario.limonciello@amd.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.