diff options
Diffstat (limited to 'drivers/i2c/Kconfig')
| -rw-r--r-- | drivers/i2c/Kconfig | 46 |
1 files changed, 31 insertions, 15 deletions
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig index efc3354d60ae..c232054fddd6 100644 --- a/drivers/i2c/Kconfig +++ b/drivers/i2c/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # I2C subsystem configuration # @@ -8,7 +9,7 @@ config I2C tristate "I2C support" select RT_MUTEXES select IRQ_DOMAIN - ---help--- + 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 @@ -39,21 +40,13 @@ 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>. + contained in the file <file:Documentation/i2c/dev-interface.rst>. This support is also available as a module. If so, the module will be called i2c-dev. @@ -68,7 +61,16 @@ config I2C_MUX This support is also available as a module. If so, the module will be called i2c-mux. -source drivers/i2c/muxes/Kconfig +source "drivers/i2c/muxes/Kconfig" + +config I2C_ATR + tristate "I2C Address Translator (ATR) support" if COMPILE_TEST + help + Enable support for I2C Address Translator (ATR) chips. + + An ATR allows accessing multiple I2C busses from a single + physical bus via address translation instead of bus selection as + i2c-muxes do. config I2C_HELPER_AUTO bool "Autoselect pertinent helper modules" @@ -94,29 +96,43 @@ config I2C_SMBUS This support is also available as a module. If so, the module will be called i2c-smbus. -source drivers/i2c/algos/Kconfig -source drivers/i2c/busses/Kconfig +source "drivers/i2c/algos/Kconfig" +source "drivers/i2c/busses/Kconfig" config I2C_STUB tristate "I2C/SMBus Test Stub" depends on m - default 'n' help This module may be useful to developers of SMBus client drivers, especially for certain kinds of sensor chips. If you do build this module, be sure to read the notes and warnings - in <file:Documentation/i2c/i2c-stub>. + in <file:Documentation/i2c/i2c-stub.rst>. If you don't know what to do here, definitely say N. config I2C_SLAVE bool "I2C slave support" + help + This enables Linux to act as an I2C slave device. Note that your I2C + bus master driver also needs to support this functionality. Please + read Documentation/i2c/slave-interface.rst for further details. if I2C_SLAVE config I2C_SLAVE_EEPROM tristate "I2C eeprom slave driver" + help + This backend makes Linux behave like an I2C EEPROM. Please read + Documentation/i2c/slave-eeprom-backend.rst for further details. + +config I2C_SLAVE_TESTUNIT + tristate "I2C testunit driver" + help + This backend can be used to trigger test cases for I2C bus masters + which require a remote device with certain capabilities, e.g. + multi-master, SMBus Host Notify, etc. Please read + Documentation/i2c/slave-testunit-backend.rst for further details. endif |