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//proc/self/root/usr/share/doc/lm_sensors-2.10.7/doc/busses/i2c-sis645
Kernel driver `i2c-sis645.o' Status: Beta Supported adapters: * Silicon Integrated Systems Corp (SiS) Any combination of these host bridges: 645, 645DX (aka 646), 648, 650, 651, 655, 735, 745, 746 and these south bridges: 961, 962, 963(L) Author: Mark M. Hoffman <mhoffman@lightlink.com> License: GPL Module Parameters ----------------- (none) Description ----------- This SMBus only driver is known to work on motherboards with the above named chipset combinations. The driver was developed without benefit of a proper datasheet from SiS. The SMBus registers are assumed compatible with those of the SiS630, although they are located in a completely different place. Thanks to Alexander Malysh <amalysh@web.de> for providing the SiS630 datasheet (and driver). The command "lspci" as root should produce something like these lines: 00:00.0 Host bridge: Silicon Integrated Systems [SiS]: Unknown device 0645 00:02.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513 00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016 or perhaps this... 00:00.0 Host bridge: Silicon Integrated Systems [SiS]: Unknown device 0645 (rev 02) 00:02.0 ISA bridge: Silicon Integrated Systems [SiS]: Unknown device 0961 00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016 (kernel versions later than 2.4.18 may fill in the "Unknown"s) If the SMBus line is missing, then the BIOS on the board has disabled the device. This driver is capable of enabling it, as long as the kernel has CONFIG_HOTPLUG enabled. In that case, the SMBus device will appear in "lspci" after the driver is loaded. Note that you need to rebuild lm_sensors AFTER running "make config" or equivalent on your kernel, otherwise the i2c-sis645 driver will not build in this support. I suspect that this driver could be made to work for the following SiS chipsets as well: 635, and 635T. If anyone owns a board with those chips AND is willing to risk crashing & burning an otherwise well-behaved kernel in the name of progress... please contact me at <mhoffman@lightlink.com> or via the project's mailing list: see http://www.lm-sensors.org/wiki/AuthorsAndContributors. Please send bug reports and/or success stories as well. TO DOs ----------- * The driver does not support SMBus block reads/writes; I may add them if a scenario is found where they're needed. Thank Yous ----------- Mark D. Studebaker <mdsxyz123@yahoo.com> - design hints and bug fixes Alexander Maylsh <amalysh@web.de> - ditto, plus an important datasheet... almost the one I really wanted Hans-Günter Lütke Uphues <hg_lu@t-online.de> - patch for SiS735 Robert Zwerus <arzie@dds.nl> - testing for SiS645DX Kianusch Sayah Karadji <kianusch@sk-tech.net> - patch for SiS645DX/962 Ken Healy - patch for Sis655 To anyone else who has written w/ feedback, thanks!