1# 2# Platform support for Chrome OS hardware (Chromebooks and Chromeboxes) 3# 4 5menuconfig CHROME_PLATFORMS 6 bool "Platform support for Chrome hardware" 7 depends on X86 || ARM || ARM64 || COMPILE_TEST 8 ---help--- 9 Say Y here to get to see options for platform support for 10 various Chromebooks and Chromeboxes. This option alone does 11 not add any kernel code. 12 13 If you say N, all options in this submenu will be skipped and disabled. 14 15if CHROME_PLATFORMS 16 17config CHROMEOS_LAPTOP 18 tristate "Chrome OS Laptop" 19 depends on I2C && DMI && X86 20 ---help--- 21 This driver instantiates i2c and smbus devices such as 22 light sensors and touchpads. 23 24 If you have a supported Chromebook, choose Y or M here. 25 The module will be called chromeos_laptop. 26 27config CHROMEOS_PSTORE 28 tristate "Chrome OS pstore support" 29 depends on X86 30 ---help--- 31 This module instantiates the persistent storage on x86 ChromeOS 32 devices. It can be used to store away console logs and crash 33 information across reboots. 34 35 The range of memory used is 0xf00000-0x1000000, traditionally 36 the memory used to back VGA controller memory. 37 38 If you have a supported Chromebook, choose Y or M here. 39 The module will be called chromeos_pstore. 40 41config CROS_EC_CHARDEV 42 tristate "Chrome OS Embedded Controller userspace device interface" 43 depends on MFD_CROS_EC 44 ---help--- 45 This driver adds support to talk with the ChromeOS EC from userspace. 46 47 If you have a supported Chromebook, choose Y or M here. 48 The module will be called cros_ec_dev. 49 50config CROS_EC_LPC 51 tristate "ChromeOS Embedded Controller (LPC)" 52 depends on MFD_CROS_EC && ACPI && (X86 || COMPILE_TEST) 53 help 54 If you say Y here, you get support for talking to the ChromeOS EC 55 over an LPC bus. This uses a simple byte-level protocol with a 56 checksum. This is used for userspace access only. The kernel 57 typically has its own communication methods. 58 59 To compile this driver as a module, choose M here: the 60 module will be called cros_ec_lpc. 61 62config CROS_EC_LPC_MEC 63 bool "ChromeOS Embedded Controller LPC Microchip EC (MEC) variant" 64 depends on CROS_EC_LPC 65 default n 66 help 67 If you say Y here, a variant LPC protocol for the Microchip EC 68 will be used. Note that this variant is not backward compatible 69 with non-Microchip ECs. 70 71 If you have a ChromeOS Embedded Controller Microchip EC variant 72 choose Y here. 73 74config CROS_EC_PROTO 75 bool 76 help 77 ChromeOS EC communication protocol helpers. 78 79config CROS_KBD_LED_BACKLIGHT 80 tristate "Backlight LED support for Chrome OS keyboards" 81 depends on LEDS_CLASS && ACPI 82 help 83 This option enables support for the keyboard backlight LEDs on 84 select Chrome OS systems. 85 86 To compile this driver as a module, choose M here: the 87 module will be called cros_kbd_led_backlight. 88 89endif # CHROMEOS_PLATFORMS 90