From af00619b1ed671fcbef16b48ee7d7172f3a8dc77 Mon Sep 17 00:00:00 2001
From: Wei-Ning Huang <wnhuang@google.com>
Date: Wed, 26 Jul 2017 17:45:11 +0800
Subject: [PATCH] hammer: enable keyboard backlight support

Enable keyboard backlight support through HID output report.

BRANCH=none
BUG=b:37971411,b:63364143
TEST=with stacked CLs
     1. `make BOARD=hammer -j`
     2. `echo 10 > /sys/class/leds/hammer\:\:kbd_backlight/brightness`
        console shows 'Keyboard backlight set to 10%'

Change-Id: Icd08c2c48ab2f0a6ea6ecbc45bad8dd2c743931d
Reviewed-on: https://chromium-review.googlesource.com/586349
Commit-Ready: Wei-Ning Huang <wnhuang@chromium.org>
Tested-by: Wei-Ning Huang <wnhuang@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
---
 board/hammer/board.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/board/hammer/board.h b/board/hammer/board.h
index 63f750f9a2..506105611d 100644
--- a/board/hammer/board.h
+++ b/board/hammer/board.h
@@ -138,6 +138,7 @@
 #ifdef SECTION_IS_RW
 #define CONFIG_USB_HID
 #define CONFIG_USB_HID_KEYBOARD
+#define CONFIG_USB_HID_KEYBOARD_BACKLIGHT
 #define CONFIG_USB_HID_TOUCHPAD
 
 #ifdef BOARD_STAFF