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Mark M. Hoffman
d78cd69dd7
(mmh) Addressed some trivial compiler warnings. (mmh) Updated documentation. git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@1793 7894878c-1315-0410-8ee3-d5d059ff63e0
84 lines
2.7 KiB
Plaintext
84 lines
2.7 KiB
Plaintext
Kernel driver `i2c-sis645.o'
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Status: Beta
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Supported adapters:
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* Silicon Integrated Systems Corp (SiS)
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Any combination of these host bridges:
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645, 645DX (aka 646), 648, 650, 651, 735, 745, 746
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and these south bridges:
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961, 962, 963(L)
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Author: Mark M. Hoffman <mhoffman@lightlink.com>
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License: GPL
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Module Parameters
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-----------------
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(none)
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Description
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-----------
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This SMBus only driver is known to work on motherboards with the above named
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chipset combinations. The driver was developed without benefit of a proper
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datasheet from SiS. The SMBus registers are assumed compatible with those of
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the SiS630, although they are located in a completely different place. Thanks
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to Alexander Malysh <amalysh@web.de> for providing the SiS630 datasheet (and
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driver).
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The command "lspci" as root should produce something like these lines:
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00:00.0 Host bridge: Silicon Integrated Systems [SiS]: Unknown device 0645
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00:02.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513
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00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016
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or perhaps this...
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00:00.0 Host bridge: Silicon Integrated Systems [SiS]: Unknown device 0645 (rev 02)
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00:02.0 ISA bridge: Silicon Integrated Systems [SiS]: Unknown device 0961
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00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016
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(kernel versions later than 2.4.18 may fill in the "Unknown"s)
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If the SMBus line is missing, then the BIOS on the board has disabled the
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device. This driver is capable of enabling it, as long as the kernel has
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CONFIG_HOTPLUG enabled. In that case, the SMBus device will appear in "lspci"
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after the driver is loaded. Note that you need to rebuild lm_sensors AFTER
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running "make config" or equivalent on your kernel, otherwise the i2c-sis645
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driver will not build in this support.
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I suspect that this driver could be made to work for the following SiS chipsets
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as well: 635, and 635T.
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If anyone owns a board with those chips AND is willing to risk crashing &
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burning an otherwise well-behaved kernel in the name of progress... please
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contact me at <mhoffman@lightlink.com> or via the project's mailing list:
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<sensors@stimpy.netroedge.com>. Please send bug reports and/or success
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stories as well.
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TO DOs
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-----------
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* The driver does not support SMBus block reads/writes; I may add them if a
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scenario is found where they're needed.
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Thank Yous
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-----------
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Mark D. Studebaker <mdsxyz123@yahoo.com>
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- design hints and bug fixes
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Alexander Maylsh <amalysh@web.de>
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- ditto, plus an important datasheet... almost the one I really wanted
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Hans-Günter Lütke Uphues <hg_lu@t-online.de>
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- patch for SiS735
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Robert Zwerus <arzie@dds.nl>
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- testing for SiS645DX
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Kianusch Sayah Karadji <kianusch@sk-tech.net>
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- patch for SiS645DX/962
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To anyone else who has written w/ feedback, thanks!
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