linux-imx

#

# I2C subsystem configuration

#

​

menu "I2C support"

​

config I2C

    tristate "I2C support"

    select RT_MUTEXES

    select IRQ_DOMAIN

    ---help---

      I2C (pronounce: I-squared-C) is a slow serial bus protocol used in

      many micro controller applications and developed by Philips.  SMBus,

      or System Management Bus is a subset of the I2C protocol.  More

      information is contained in the directory <file:Documentation/i2c/>,

      especially in the file called "summary" there.

​

      Both I2C and SMBus are supported here. You will need this for

      hardware sensors support, and also for Video For Linux support.

​

      If you want I2C support, you should say Y here and also to the

      specific driver for your bus adapter(s) below.

​

      This I2C support can also be built as a module.  If so, the module

      will be called i2c-core.

​

config ACPI_I2C_OPREGION

    bool "ACPI I2C Operation region support"

    depends on I2C=y && ACPI

    default y

    help

      Say Y here if you want to enable ACPI I2C operation region support.

      Operation Regions allow firmware (BIOS) code to access I2C slave devices,

      such as smart batteries through an I2C host controller driver.

​

if I2C

​

config I2C_BOARDINFO

    bool

    default y

​

config I2C_COMPAT

    bool "Enable compatibility bits for old user-space"

    default y

    help

      Say Y here if you intend to run lm-sensors 3.1.1 or older, or any

      other user-space package which expects i2c adapters to be class

      devices. If you don't know, say Y.

​

config I2C_CHARDEV

    tristate "I2C device interface"

    help

      Say Y here to use i2c-* device files, usually found in the /dev

      directory on your system.  They make it possible to have user-space

      programs use the I2C bus.  Information on how to do this is

      contained in the file <file:Documentation/i2c/dev-interface>.

​

      This support is also available as a module.  If so, the module 

      will be called i2c-dev.

​

config I2C_MUX

    tristate "I2C bus multiplexing support"

    help