Lines Matching full:i2c
3 # I2C subsystem configuration
6 menu "I2C support"
8 config I2C config
9 tristate "I2C support"
13 I2C (pronounce: I-squared-C) is a slow serial bus protocol used in
15 or System Management Bus is a subset of the I2C protocol. More
16 information is contained in the directory <file:Documentation/i2c/>,
19 Both I2C and SMBus are supported here. You will need this for
22 If you want I2C support, you should say Y here and also to the
25 This I2C support can also be built as a module. If so, the module
26 will be called i2c-core.
29 bool "ACPI I2C Operation region support"
30 depends on I2C=y && ACPI
33 Say Y here if you want to enable ACPI I2C operation region support.
34 Operation Regions allow firmware (BIOS) code to access I2C slave devices,
35 such as smart batteries through an I2C host controller driver.
37 if I2C
48 other user-space package which expects i2c adapters to be class
52 tristate "I2C device interface"
54 Say Y here to use i2c-* device files, usually found in the /dev
56 programs use the I2C bus. Information on how to do this is
57 contained in the file <file:Documentation/i2c/dev-interface.rst>.
60 will be called i2c-dev.
63 tristate "I2C bus multiplexing support"
65 Say Y here if you want the I2C core to support the ability to
66 handle multiplexed I2C bus topologies, by presenting each
67 multiplexed segment as a I2C adapter.
70 will be called i2c-mux.
72 source "drivers/i2c/muxes/Kconfig"
78 Some I2C bus drivers require so-called "I2C algorithm" modules
80 I2C interfaces. This option will autoselect them so that you don't
84 modules, for example for use with external I2C bus drivers.
91 Say Y here if you want support for SMBus extensions to the I2C
96 will be called i2c-smbus.
98 source "drivers/i2c/algos/Kconfig"
99 source "drivers/i2c/busses/Kconfig"
102 tristate "I2C/SMBus Test Stub"
110 in <file:Documentation/i2c/i2c-stub.rst>.
115 bool "I2C slave support"
120 tristate "I2C eeprom slave driver"
125 bool "I2C Core debugging messages"
127 Say Y here if you want the I2C core to produce a bunch of debug
129 problem with I2C support and want to see more of what is going on.
132 bool "I2C Algorithm debugging messages"
134 Say Y here if you want the I2C algorithm drivers to produce a bunch
136 a problem with I2C support and want to see more of what is going
140 bool "I2C Bus debugging messages"
143 Say Y here if you want the I2C bus drivers to produce a bunch of
145 a problem with I2C support and want to see more of what is going
148 endif # I2C