![Simon Que](/assets/img/avatar_default.png)
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>
78 lines
2.5 KiB
Plaintext
78 lines
2.5 KiB
Plaintext
#
|
|
# Platform support for Chrome OS hardware (Chromebooks and Chromeboxes)
|
|
#
|
|
|
|
menuconfig CHROME_PLATFORMS
|
|
bool "Platform support for Chrome hardware"
|
|
depends on X86 || ARM || ARM64 || COMPILE_TEST
|
|
---help---
|
|
Say Y here to get to see options for platform support for
|
|
various Chromebooks and Chromeboxes. This option alone does
|
|
not add any kernel code.
|
|
|
|
If you say N, all options in this submenu will be skipped and disabled.
|
|
|
|
if CHROME_PLATFORMS
|
|
|
|
config CHROMEOS_LAPTOP
|
|
tristate "Chrome OS Laptop"
|
|
depends on I2C && DMI && X86
|
|
---help---
|
|
This driver instantiates i2c and smbus devices such as
|
|
light sensors and touchpads.
|
|
|
|
If you have a supported Chromebook, choose Y or M here.
|
|
The module will be called chromeos_laptop.
|
|
|
|
config CHROMEOS_PSTORE
|
|
tristate "Chrome OS pstore support"
|
|
depends on X86
|
|
---help---
|
|
This module instantiates the persistent storage on x86 ChromeOS
|
|
devices. It can be used to store away console logs and crash
|
|
information across reboots.
|
|
|
|
The range of memory used is 0xf00000-0x1000000, traditionally
|
|
the memory used to back VGA controller memory.
|
|
|
|
If you have a supported Chromebook, choose Y or M here.
|
|
The module will be called chromeos_pstore.
|
|
|
|
config CROS_EC_CHARDEV
|
|
tristate "Chrome OS Embedded Controller userspace device interface"
|
|
depends on MFD_CROS_EC
|
|
---help---
|
|
This driver adds support to talk with the ChromeOS EC from userspace.
|
|
|
|
If you have a supported Chromebook, choose Y or M here.
|
|
The module will be called cros_ec_dev.
|
|
|
|
config CROS_EC_LPC
|
|
tristate "ChromeOS Embedded Controller (LPC)"
|
|
depends on MFD_CROS_EC && (X86 || COMPILE_TEST)
|
|
help
|
|
If you say Y here, you get support for talking to the ChromeOS EC
|
|
over an LPC bus. This uses a simple byte-level protocol with a
|
|
checksum. This is used for userspace access only. The kernel
|
|
typically has its own communication methods.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called cros_ec_lpc.
|
|
|
|
config CROS_EC_PROTO
|
|
bool
|
|
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
|