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"
109 in <file:Documentation/i2c/i2c-stub.rst>.
114 bool "I2C slave support"
116 This enables Linux to act as an I2C slave device. Note that your I2C
118 read Documentation/i2c/slave-interface.rst for further details.
123 tristate "I2C eeprom slave driver"
125 This backend makes Linux behave like an I2C EEPROM. Please read
126 Documentation/i2c/slave-eeprom-backend.rst for further details.
129 tristate "I2C eeprom testunit driver"
131 This backend can be used to trigger test cases for I2C bus masters
134 Documentation/i2c/slave-testunit-backend.rst for further details.
139 bool "I2C Core debugging messages"
141 Say Y here if you want the I2C core to produce a bunch of debug
143 problem with I2C support and want to see more of what is going on.
146 bool "I2C Algorithm debugging messages"
148 Say Y here if you want the I2C algorithm drivers to produce a bunch
150 a problem with I2C support and want to see more of what is going
154 bool "I2C Bus debugging messages"
157 Say Y here if you want the I2C bus drivers to produce a bunch of
159 a problem with I2C support and want to see more of what is going
162 endif # I2C