From 8f93b0b2b0a336746adc8730921b219f0ba40c29 Mon Sep 17 00:00:00 2001
From: Jason Gerecke <killertofu@gmail.com>
Date: Fri, 6 Mar 2015 11:47:41 -0800
Subject: [PATCH] HID: wacom: Provide battery charge state to system over USB
 if available

If a wireless adapter (which contains the charging circuitry) is
detected as being attached to the tablet then create a new battery
interface and update its status as data is reported. Also destroy the
battery if the adapter goes away.

Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Reading git-format-patch failed