CONFIG_CROS_EC_LPC: ChromeOS Embedded Controller (LPC)

General informations

The Linux kernel configuration item CONFIG_CROS_EC_LPC:

• prompt: ChromeOS Embedded Controller (LPC)
• type: tristate
• depends on: ( CONFIG_CROS_EC && CONFIG_ACPI && ( CONFIG_X86 || CONFIG_COMPILE_TEST )) && ( CONFIG_HAS_IOPORT )
• defined in drivers/platform/chrome/Kconfig
• found in Linux kernels: 4.1–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD
• modules built: cros_ec_lpc, cros_ec_lpcs

Help text

If you say Y here, you get support for talking to the ChromeOS EC over an LPC bus, including the LPC Microchip EC (MEC) variant. 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_lpcs.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb acpi "GOOG0004" : CONFIG_CHROME_PLATFORMS CONFIG_CROS_EC_LPC : drivers/platform/chrome/cros_ec_lpc.c # in 4.13–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD
• lkddb module cros_ec_lpc CONFIG_CROS_EC_LPC : drivers/platform/chrome/Kconfig : "ChromeOS Embedded Controller (LPC)" # in 4.1–4.12
• lkddb module cros_ec_lpcs CONFIG_CROS_EC_LPC : drivers/platform/chrome/Kconfig : "ChromeOS Embedded Controller (LPC)" # in 4.13–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD
• lkddb platform "cros_ec_lpc" : CONFIG_CHROME_PLATFORMS CONFIG_CROS_EC_LPC : drivers/platform/chrome/cros_ec_lpc.c # in 4.1–4.12
• lkddb platform "cros_ec_lpcs" : CONFIG_CHROME_PLATFORMS CONFIG_CROS_EC_LPC : drivers/platform/chrome/cros_ec_lpc.c # in 4.13–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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