Input: wistron - add LED support

Add support to wistron_btns for leds that come with the multimedia keys.
Mail and wifi leds are supported, on laptops which have them.

Depending on the laptop, wifi subsystem may control just the led, or both
the led and the wifi card. Wifi led interface is activated only for the
former type of laptops, as the latter type is already managed. Leds are
controled by the interface in /sys/class/leds.

Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 88e29074ac90..4326f536f849 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -65,9 +65,12 @@ config INPUT_COBALT_BTNS
 config INPUT_WISTRON_BTNS
         tristate "x86 Wistron laptop button interface"
         depends on X86 && !X86_64
+        select NEW_LEDS
+        select LEDS_CLASS
         help
           Say Y here for support of Winstron laptop button interface, used on
-          laptops of various brands, including Acer and Fujitsu-Siemens.
+          laptops of various brands, including Acer and Fujitsu-Siemens. If
+          available, mail and wifi leds will be controlable via /sys/class/leds.
 
           To compile this driver as a module, choose M here: the module will
           be called wistron_btns.