| #!/bin/sh |
| |
| # Copyright (c) 2013 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # Try backlight_tool first if available. |
| backlight_tool --set_brightness_percent 100 2>/dev/null && exit |
| |
| BACKLIGHTPATH="/sys/class/backlight" |
| |
| for INTERFACE in ${BACKLIGHTPATH}/* ; do |
| BRIGHTNESS="${INTERFACE}/brightness" |
| MAX_BRIGHTNESS="${INTERFACE}/max_brightness" |
| [ -f "${BRIGHTNESS}" -a -f "${MAX_BRIGHTNESS}" ] || continue |
| cp -f "${MAX_BRIGHTNESS}" "${BRIGHTNESS}" |
| done |
| |
| exit 0 |
