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How to configure the Linux kernel/drivers/i2c/busses

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Howto configure the Linux kernel / drivers / i2c / busses


i2c


Sensor device configuration

I2C Hardware Bus supportEdit

    • depends on I2C
  • Option: I2C_ALI1535
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) ALI 1535
    • depends on I2C && PCI
      If you say yes to this option, support will be included for the SMB Host controller on Acer Labs Inc. (ALI) M1535 South Bridges. The SMB controller is part of the 7101 device, which is an ACPI-compliant Power Management Unit (PMU).
      This driver can also be built as a module. If so, the module will be called i2c-ali1535.


  • Option: I2C_ALI1563
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) ALI 1563
    • depends on I2C && PCI && EXPERIMENTAL
      If you say yes to this option, support will be included for the SMB Host controller on Acer Labs Inc. (ALI) M1563 South Bridges. The SMB controller is part of the 7101 device, which is an ACPI-compliant Power Management Unit (PMU).
      This driver can also be built as a module. If so, the module will be called i2c-ali1563.


  • Option: I2C_ALI15X3
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) ALI 15x3
    • depends on I2C && PCI
      If you say yes to this option, support will be included for the Acer Labs Inc. (ALI) M1514 and M1543 motherboard I2C interfaces.
      This driver can also be built as a module. If so, the module will be called i2c-ali15x3.


  • Option: I2C_AMD756
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) AMD 756/766/768/8111 and nVidia nForce
    • depends on I2C && PCI
      If you say yes to this option, support will be included for the AMD 756/766/768 mainboard I2C interfaces. The driver also includes support for the first (SMBus 1.0) I2C interface of the AMD 8111 and the nVidia nForce I2C interface.
      This driver can also be built as a module. If so, the module will be called i2c-amd756.


  • Option: I2C_AMD756_S4882
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) SMBus multiplexing on the Tyan S4882
    • depends on I2C_AMD756 && EXPERIMENTAL
      Enabling this option will add specific SMBus support for the Tyan S4882 motherboard. On this 4-CPU board, the SMBus is multiplexed over 8 different channels, where the various memory module EEPROMs and temperature sensors live. Saying yes here will give you access to these in addition to the trunk.
      This driver can also be built as a module. If so, the module will be called i2c-amd756-s4882.


  • Option: I2C_AMD8111
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) AMD 8111
    • depends on I2C && PCI
      If you say yes to this option, support will be included for the second (SMBus 2.0) AMD 8111 mainboard I2C interface.
      This driver can also be built as a module. If so, the module will be called i2c-amd8111.


  • Option: I2C_AU1550
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Au1550 SMBus interface
    • depends on I2C && SOC_AU1550
      If you say yes to this option, support will be included for the Au1550 SMBus interface.
      This driver can also be built as a module. If so, the module will be called i2c-au1550.


  • Option: I2C_ELEKTOR
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Elektor ISA card
    • depends on I2C && ISA && BROKEN_ON_SMP
    • select I2C_ALGOPCF
      This supports the PCF8584 ISA bus I2C adapter. Say Y if you own such an adapter.
      This support is also available as a module. If so, the module will be called i2c-elektor.


  • Option: I2C_HYDRA
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) CHRP Apple Hydra Mac I/O I2C interface
    • depends on I2C && PCI && PPC_CHRP && EXPERIMENTAL
    • select I2C_ALGOBIT
      This supports the use of the I2C interface in the Apple Hydra Mac I/O chip on some CHRP machines (e.g. the LongTrail). Say Y if you have such a machine.
      This support is also available as a module. If so, the module will be called i2c-hydra.


  • Option: I2C_I801
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Intel 82801 (ICH)
    • depends on I2C && PCI
      If you say yes to this option, support will be included for the Intel 801 family of mainboard I2C interfaces. Specifically, the following versions of the chipset are supported: 82801AA 82801AB 82801BA 82801CA/CAM 82801DB 82801EB/ER (ICH5/ICH5R) 6300ESB ICH6 ICH7 ESB2
      This driver can also be built as a module. If so, the module will be called i2c-i801.


  • Option: I2C_I810
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Intel 810/815
    • depends on I2C && PCI
    • select I2C_ALGOBIT
      If you say yes to this option, support will be included for the Intel 810/815 family of mainboard I2C interfaces. Specifically, the following versions of the chipset are supported: i810AA i810AB i810E i815 i845G
      This driver can also be built as a module. If so, the module will be called i2c-i810.


  • Option: I2C_PXA
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Intel PXA2XX I2C adapter (EXPERIMENTAL)
    • depends on I2C && EXPERIMENTAL && ARCH_PXA
      If you have devices in the PXA I2C bus, say yes to this option. This driver can also be built as a module. If so, the module will be called i2c-pxa.


  • Option: I2C_PXA_SLAVE
    • Kernel Versions: 2.6.15.6 ...
    • (on/off) Intel PXA2XX I2C Slave comms support
    • depends on I2C_PXA
      Support I2C slave mode communications on the PXA I2C bus. This is necessary for systems where the PXA may be a target on the I2C bus.


  • Option: I2C_PIIX4
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Intel PIIX4
    • depends on I2C && PCI
      If you say yes to this option, support will be included for the Intel PIIX4 family of mainboard I2C interfaces. Specifically, the following versions of the chipset are supported: Intel PIIX4 Intel 440MX Serverworks OSB4 Serverworks CSB5 Serverworks CSB6 SMSC Victory66
      This driver can also be built as a module. If so, the module will be called i2c-piix4.


  • Option: I2C_IBM_IIC
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) IBM PPC 4xx on-chip I2C interface
    • depends on IBM_OCP && I2C
      Say Y here if you want to use IIC peripheral found on embedded IBM PPC 4xx based systems.
      This driver can also be built as a module. If so, the module will be called i2c-ibm_iic.


  • Option: I2C_IOP3XX
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Intel IOP3xx and IXP4xx on-chip I2C interface
    • depends on (ARCH_IOP3XX || ARCH_IXP4XX) && I2C
      Say Y here if you want to use the IIC bus controller on the Intel IOP3xx I/O Processors or IXP4xx Network Processors.
      This driver can also be built as a module. If so, the module will be called i2c-iop3xx.


  • Option: I2C_ISA
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module)
    • depends on I2C


  • Option: I2C_ITE
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) ITE I2C Adapter
    • depends on I2C && MIPS_ITE8172
    • select I2C_ALGOITE
      This supports the ITE8172 I2C peripheral found on some MIPS systems. Say Y if you have one of these. You should also say Y for the ITE I2C driver algorithm support above.
      This support is also available as a module. If so, the module will be called i2c-ite.


  • Option: I2C_IXP4XX
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) IXP4xx GPIO-Based I2C Interface
    • depends on I2C && ARCH_IXP4XX
    • select I2C_ALGOBIT
      Say Y here if you have an Intel IXP4xx(420,421,422,425) based system and are using GPIO lines for an I2C bus.
      This support is also available as a module. If so, the module will be called i2c-ixp4xx.


  • Option: I2C_IXP2000
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) IXP2000 GPIO-Based I2C Interface
    • depends on I2C && ARCH_IXP2000
    • select I2C_ALGOBIT
      Say Y here if you have an Intel IXP2000(2400, 2800, 2850) based system and are using GPIO lines for an I2C bus.
      This support is also available as a module. If so, the module will be called i2c-ixp2000.


  • Option: I2C_KEYWEST
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Powermac Keywest I2C interface
    • depends on I2C && PPC_PMAC
      This supports the use of the I2C interface in the combo-I/O chip on recent Apple machines. Say Y if you have such a machine.
      This support is also available as a module. If so, the module will be called i2c-keywest.


  • Option: I2C_PMAC_SMU
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Powermac SMU I2C interface
    • depends on I2C && PMAC_SMU
      This supports the use of the I2C interface in the SMU chip on recent Apple machines like the iMac G5. It is used among others by the thermal control driver for those machines. Say Y if you have such a machine.
      This support is also available as a module. If so, the module will be called i2c-pmac-smu.


  • Option: I2C_MPC
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) MPC107/824x/85xx/52xx
    • depends on I2C && PPC32
      If you say yes to this option, support will be included for the built-in I2C interface on the MPC107/Tsi107/MPC8240/MPC8245 and MPC85xx family processors. The driver may also work on 52xx family processors, though interrupts are known not to work.
      This driver can also be built as a module. If so, the module will be called i2c-mpc.


  • Option: I2C_NFORCE2
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Nvidia nForce2, nForce3 and nForce4
    • depends on I2C && PCI
      If you say yes to this option, support will be included for the Nvidia nForce2, nForce3 and nForce4 families of mainboard I2C interfaces.
      This driver can also be built as a module. If so, the module will be called i2c-nforce2.


  • Option: I2C_PARPORT
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Parallel port adapter
    • depends on I2C && PARPORT
    • select I2C_ALGOBIT
      This supports parallel port I2C adapters such as the ones made by Philips or Velleman, Analog Devices evaluation boards, and more. Basically any adapter using the parallel port as an I2C bus with no extra chipset is supported by this driver, or could be.
      This driver is a replacement for (and was inspired by) an older driver named i2c-philips-par. The new driver supports more devices, and makes it easier to add support for new devices. Another driver exists, named i2c-parport-light, which doesn't depend on the parport driver. This is meant for embedded systems. Don't say Y here if you intend to say Y or M there.
      This support is also available as a module. If so, the module will be called i2c-parport.


  • Option: I2C_PARPORT_LIGHT
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Parallel port adapter (light)
    • depends on I2C
    • select I2C_ALGOBIT
      This supports parallel port I2C adapters such as the ones made by Philips or Velleman, Analog Devices evaluation boards, and more. Basically any adapter using the parallel port as an I2C bus with no extra chipset is supported by this driver, or could be.
      This driver is a light version of i2c-parport. It doesn't depend on the parport driver, and uses direct I/O access instead. This might be preferred on embedded systems where wasting memory for the clean but heavy parport handling is not an option. The drawback is a reduced portability and the impossibility to dasiy-chain other parallel port devices. Don't say Y here if you said Y or M to i2c-parport. Saying M to both is possible but both modules should not be loaded at the same time.
      This support is also available as a module. If so, the module will be called i2c-parport-light.


  • Option: I2C_PROSAVAGE
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) S3/VIA (Pro)Savage
    • depends on I2C && PCI
    • select I2C_ALGOBIT
      If you say yes to this option, support will be included for the I2C bus and DDC bus of the S3VIA embedded Savage4 and ProSavage8 graphics processors. chipsets supported: S3/VIA KM266/VT8375 aka ProSavage8 S3/VIA KM133/VT8365 aka Savage4
      This support is also available as a module. If so, the module will be called i2c-prosavage.


  • Option: I2C_RPXLITE
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Embedded Planet RPX Lite/Classic support
    • depends on (RPXLITE || RPXCLASSIC) && I2C
    • select I2C_ALGO8XX


  • Option: I2C_S3C2410
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) S3C2410 I2C Driver
    • depends on I2C && ARCH_S3C2410
      Say Y here to include support for I2C controller in the Samsung S3C2410 based System-on-Chip devices.


  • Option: I2C_SAVAGE4
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) S3 Savage 4
    • depends on I2C && PCI && EXPERIMENTAL
    • select I2C_ALGOBIT
      If you say yes to this option, support will be included for the S3 Savage 4 I2C interface.
      This driver can also be built as a module. If so, the module will be called i2c-savage4.


  • Option: I2C_SIBYTE
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) SiByte SMBus interface
    • depends on SIBYTE_SB1xxx_SOC && I2C
      Supports the SiByte SOC on-chip I2C interfaces (2 channels).


  • Option: SCx200_I2C
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) NatSemi SCx200 I2C using GPIO pins
    • depends on SCx200_GPIO && I2C
    • select I2C_ALGOBIT
      Enable the use of two GPIO pins of a SCx200 processor as an I2C bus.
      If you don't know what to do here, say N.
      This support is also available as a module. If so, the module will be called scx200_i2c.


  • Option: SCx200_I2C_SCL
    • Kernel Versions: 2.6.15.6 ...

"GPIO pin used for SCL"

    • depends on SCx200_I2C
    • default "12"
      Enter the GPIO pin number used for the SCL signal. This value can also be specified with a module parameter.


  • Option: SCx200_I2C_SDA
    • Kernel Versions: 2.6.15.6 ...

"GPIO pin used for SDA"

    • depends on SCx200_I2C
    • default "13"
      Enter the GPIO pin number used for the SSA signal. This value can also be specified with a module parameter.


  • Option: SCx200_ACB
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) NatSemi SCx200 ACCESS.bus
    • depends on I2C && PCI
      Enable the use of the ACCESS.bus controllers of a SCx200 processor.
      If you don't know what to do here, say N.
      This support is also available as a module. If so, the module will be called scx200_acb.


  • Option: I2C_SIS5595
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) SiS 5595
    • depends on I2C && PCI
      If you say yes to this option, support will be included for the SiS5595 SMBus (a subset of I2C) interface.
      This driver can also be built as a module. If so, the module will be called i2c-sis5595.


  • Option: I2C_SIS630
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) SiS 630/730
    • depends on I2C && PCI
      If you say yes to this option, support will be included for the SiS630 and SiS730 SMBus (a subset of I2C) interface.
      This driver can also be built as a module. If so, the module will be called i2c-sis630.


  • Option: I2C_SIS96X
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) SiS 96x
    • depends on I2C && PCI
      If you say yes to this option, support will be included for the SiS 96x SMBus (a subset of I2C) interfaces. Specifically, the following chipsets are supported: 645/961 645DX/961 645DX/962 648/961 650/961 735 745
      This driver can also be built as a module. If so, the module will be called i2c-sis96x.


  • Option: I2C_STUB
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) I2C/SMBus Test Stub
    • depends on I2C && EXPERIMENTAL && 'm'
    • default 'n'
      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>.
      If you don't know what to do here, definitely say N.


  • Option: I2C_VIA
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) VIA 82C586B
    • depends on I2C && PCI && EXPERIMENTAL
    • select I2C_ALGOBIT
      If you say yes to this option, support will be included for the VIA 82C586B I2C interface
      This driver can also be built as a module. If so, the module will be called i2c-via.


  • Option: I2C_VIAPRO
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) VIA 82C596/82C686/823x
    • depends on I2C && PCI
      If you say yes to this option, support will be included for the VIA 82C596/82C686/823x I2C interfaces. Specifically, the following chipsets are supported: 82C596A/B 82C686A/B 8231 8233 8233A 8235 8237
      This driver can also be built as a module. If so, the module will be called i2c-viapro.


  • Option: I2C_VOODOO3
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Voodoo 3
    • depends on I2C && PCI
    • select I2C_ALGOBIT
      If you say yes to this option, support will be included for the Voodoo 3 I2C interface.
      This driver can also be built as a module. If so, the module will be called i2c-voodoo3.


  • Option: I2C_PCA_ISA
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) PCA9564 on an ISA bus
    • depends on I2C
    • select I2C_ALGOPCA
      This driver supports ISA boards using the Philips PCA 9564 Parallel bus to I2C bus controller This driver can also be built as a module. If so, the module will be called i2c-pca-isa.


  • Option: I2C_MV64XXX
    • Kernel Versions: 2.6.15.6 ...
    • (on/off/module) Marvell mv64xxx I2C Controller
    • depends on I2C && MV64X60 && EXPERIMENTAL
      If you say yes to this option, support will be included for the built-in I2C interface on the Marvell 64xxx line of host bridges.
      This driver can also be built as a module. If so, the module will be called i2c-mv64xxx.



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