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- Kernel driver i2c-i801
- Supported adapters:
- * Intel 82801AA and 82801AB (ICH and ICH0 - part of the
- '810' and '810E' chipsets)
- * Intel 82801BA (ICH2 - part of the '815E' chipset)
- * Intel 82801CA/CAM (ICH3)
- * Intel 82801DB (ICH4) (HW PEC supported, 32 byte buffer not supported)
- * Intel 82801EB/ER (ICH5) (HW PEC supported, 32 byte buffer not supported)
- * Intel 6300ESB
- * Intel 82801FB/FR/FW/FRW (ICH6)
- * Intel ICH7
- Datasheets: Publicly available at the Intel website
- Authors:
- Frodo Looijaard <frodol@dds.nl>,
- Philip Edelbrock <phil@netroedge.com>,
- Mark Studebaker <mdsxyz123@yahoo.com>
- Module Parameters
- -----------------
- * force_addr: int
- Forcibly enable the ICH at the given address. EXTREMELY DANGEROUS!
- Description
- -----------
- The ICH (properly known as the 82801AA), ICH0 (82801AB), ICH2 (82801BA),
- ICH3 (82801CA/CAM) and later devices are Intel chips that are a part of
- Intel's '810' chipset for Celeron-based PCs, '810E' chipset for
- Pentium-based PCs, '815E' chipset, and others.
- The ICH chips contain at least SEVEN separate PCI functions in TWO logical
- PCI devices. An output of lspci will show something similar to the
- following:
- 00:1e.0 PCI bridge: Intel Corporation: Unknown device 2418 (rev 01)
- 00:1f.0 ISA bridge: Intel Corporation: Unknown device 2410 (rev 01)
- 00:1f.1 IDE interface: Intel Corporation: Unknown device 2411 (rev 01)
- 00:1f.2 USB Controller: Intel Corporation: Unknown device 2412 (rev 01)
- 00:1f.3 Unknown class [0c05]: Intel Corporation: Unknown device 2413 (rev 01)
- The SMBus controller is function 3 in device 1f. Class 0c05 is SMBus Serial
- Controller.
- If you do NOT see the 24x3 device at function 3, and you can't figure out
- any way in the BIOS to enable it,
- The ICH chips are quite similar to Intel's PIIX4 chip, at least in the
- SMBus controller.
- See the file i2c-piix4 for some additional information.
- Process Call Support
- --------------------
- Not supported.
- I2C Block Read Support
- ----------------------
- Not supported at the moment.
- SMBus 2.0 Support
- -----------------
- The 82801DB (ICH4) and later chips support several SMBus 2.0 features.
- **********************
- The lm_sensors project gratefully acknowledges the support of Texas
- Instruments in the initial development of this driver.
- The lm_sensors project gratefully acknowledges the support of Intel in the
- development of SMBus 2.0 / ICH4 features of this driver.
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