Files
OpenCellular/chip/stm32
Wei-Ning Huang 235d9a18c1 chip/stm32/usb_hid_keyboard: implement keyboard backlight control
Implement keyboard backlight control through HID output report. One
could enable CONFIG_USB_HID_KEYBOARD_BACKLIGHT to enable keyboard
backlight support for a given board. Target board must implement the
`void board_set_backlight(int brightness)` function in order correctly
set backlight.

BRANCH=none
BUG=b:37971411,b:63364143
TEST=with follow up 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: Ibeff510a0d996ddebf61b54ed6b500b02c35564a
Signed-off-by: Wei-Ning Huang <wnhuang@google.com>
Reviewed-on: https://chromium-review.googlesource.com/586348
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>
2017-09-01 12:39:19 -07:00
..
2017-07-28 17:45:13 -07:00
2014-10-07 20:58:52 +00:00
2017-07-28 17:45:13 -07:00
2016-04-25 16:49:02 -07:00
2015-06-18 19:07:00 +00:00
2017-08-18 16:46:33 -07:00
2017-04-26 11:25:57 -07:00
2014-10-07 20:58:52 +00:00
2014-10-07 20:58:52 +00:00
2016-04-25 16:49:02 -07:00
2013-07-08 13:53:58 -07:00
2017-07-28 17:45:13 -07:00
2016-04-25 16:49:01 -07:00
2017-02-23 11:36:21 -08:00
2016-11-15 17:41:53 -08:00
2015-08-24 19:08:35 +00:00
2015-08-24 19:08:30 +00:00
2015-08-24 19:08:30 +00:00
2015-08-24 19:08:30 +00:00
2015-08-24 19:08:30 +00:00
2015-08-24 19:08:30 +00:00
2017-07-13 17:30:40 -07:00
2017-07-13 17:30:40 -07:00
2016-09-02 21:17:22 -07:00