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authorSimon Que <sque@chromium.org>2016-03-08 11:12:46 -0800
committerOlof Johansson <olof@lixom.net>2016-05-11 11:55:47 -0700
commit492ef7829d2d09428803bffb187d5781bbc12ca5 (patch)
treed6f242596a5864505e3664d0f1a5e6861e0cff2f /drivers/platform/chrome/Kconfig
parentplatform/chrome: use to_platform_device() (diff)
downloadlinux-dev-492ef7829d2d09428803bffb187d5781bbc12ca5.tar.xz
linux-dev-492ef7829d2d09428803bffb187d5781bbc12ca5.zip
platform/chrome: Add Chrome OS keyboard backlight LEDs support
This is a driver for ACPI-based keyboard backlight LEDs found on Chromebooks. The driver locates \\_SB.KBLT ACPI device and exports backlight as "chromeos::kbd_backlight" LED class device in sysfs. Signed-off-by: Simon Que <sque@chromium.org> Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Tested-by: Evan McClain <aeroevan@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@chromium.org> Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/platform/chrome/Kconfig')
-rw-r--r--drivers/platform/chrome/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/platform/chrome/Kconfig b/drivers/platform/chrome/Kconfig
index d03df4a60d05..76bdae1a93bb 100644
--- a/drivers/platform/chrome/Kconfig
+++ b/drivers/platform/chrome/Kconfig
@@ -64,4 +64,14 @@ config CROS_EC_PROTO
help
ChromeOS EC communication protocol helpers.
+config CROS_KBD_LED_BACKLIGHT
+ tristate "Backlight LED support for Chrome OS keyboards"
+ depends on LEDS_CLASS && ACPI
+ help
+ This option enables support for the keyboard backlight LEDs on
+ select Chrome OS systems.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cros_kbd_led_backlight.
+
endif # CHROMEOS_PLATFORMS