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 CHROMEOS_TBMC 42 tristate "ChromeOS Tablet Switch Controller" 43 depends on ACPI 44 depends on INPUT 45 help 46 This option adds a driver for the tablet switch on 47 select Chrome OS systems. 48 49 To compile this driver as a module, choose M here: the 50 module will be called chromeos_tbmc. 51 52config CROS_EC_CTL 53 tristate 54 55config CROS_EC_LPC 56 tristate "ChromeOS Embedded Controller (LPC)" 57 depends on MFD_CROS_EC && ACPI && (X86 || COMPILE_TEST) 58 help 59 If you say Y here, you get support for talking to the ChromeOS EC 60 over an LPC bus. This uses a simple byte-level protocol with a 61 checksum. This is used for userspace access only. The kernel 62 typically has its own communication methods. 63 64 To compile this driver as a module, choose M here: the 65 module will be called cros_ec_lpc. 66 67config CROS_EC_LPC_MEC 68 bool "ChromeOS Embedded Controller LPC Microchip EC (MEC) variant" 69 depends on CROS_EC_LPC 70 default n 71 help 72 If you say Y here, a variant LPC protocol for the Microchip EC 73 will be used. Note that this variant is not backward compatible 74 with non-Microchip ECs. 75 76 If you have a ChromeOS Embedded Controller Microchip EC variant 77 choose Y here. 78 79config CROS_EC_PROTO 80 bool 81 help 82 ChromeOS EC communication protocol helpers. 83 84config CROS_KBD_LED_BACKLIGHT 85 tristate "Backlight LED support for Chrome OS keyboards" 86 depends on LEDS_CLASS && ACPI 87 help 88 This option enables support for the keyboard backlight LEDs on 89 select Chrome OS systems. 90 91 To compile this driver as a module, choose M here: the 92 module will be called cros_kbd_led_backlight. 93 94endif # CHROMEOS_PLATFORMS 95