path: root/Documentation/i2c/busses/i2c-i801
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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /Documentation/i2c/busses/i2c-i801
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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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
+ 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!
+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
+ 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
+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.