Input: add key code for ambient light sensor button

Many notebooks have a special button for enabling/disabling ambient
light sensor.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index a3726275876d..7bacdb514377 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -719,6 +719,8 @@ struct input_keymap_entry {
 #define BTN_DPAD_LEFT           0x222
 #define BTN_DPAD_RIGHT          0x223
 
+#define KEY_ALS_TOGGLE          0x230   /* Ambient light sensor */
+
 #define BTN_TRIGGER_HAPPY               0x2c0
 #define BTN_TRIGGER_HAPPY1              0x2c0
 #define BTN_TRIGGER_HAPPY2              0x2c1