HID: expose wacom pen tablet battery through power_supply class

This patch exposes wacom pen tablet battery capacity and ac state thru
power_supply class is sysfs.

Signed-off-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 71d4c0703629..8e1b505b5bf2 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -357,6 +357,14 @@ config HID_WACOM
         ---help---
         Support for Wacom Graphire Bluetooth tablet.
 
+config HID_WACOM_POWER_SUPPLY
+        bool "Wacom Bluetooth devices power supply status support"
+        depends on HID_WACOM
+        select POWER_SUPPLY
+        ---help---
+          Say Y here if you want to enable power supply status monitoring for
+          Wacom Bluetooth devices.
+
 config HID_ZEROPLUS
         tristate "Zeroplus based game controller support" if EMBEDDED
         depends on USB_HID