1 ======================== 2 Kernel driver i2c-sis96x 3 ======================== 4 5 Replaces 2.4.x i2c-sis645 6 7 Supported adapters: 8 9 * Silicon Integrated Systems Corp (SiS) 10 11 Any combination of these host bridges: 12 645, 645DX (aka 646), 648, 650, 651, 655, 735, 745, 746 13 14 and these south bridges: 15 961, 962, 963(L) 16 17 Author: Mark M. Hoffman <mhoffman@lightlink.com> 18 19 Description 20 ----------- 21 22 This SMBus only driver is known to work on motherboards with the above 23 named chipset combinations. The driver was developed without benefit of a 24 proper datasheet from SiS. The SMBus registers are assumed compatible with 25 those of the SiS630, although they are located in a completely different 26 place. Thanks to Alexander Malysh <amalysh@web.de> for providing the 27 SiS630 datasheet (and driver). 28 29 The command ``lspci`` as root should produce something like these lines:: 30 31 00:00.0 Host bridge: Silicon Integrated Systems [SiS]: Unknown device 0645 32 00:02.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513 33 00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016 34 35 or perhaps this:: 36 37 00:00.0 Host bridge: Silicon Integrated Systems [SiS]: Unknown device 0645 38 00:02.0 ISA bridge: Silicon Integrated Systems [SiS]: Unknown device 0961 39 00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016 40 41 (kernel versions later than 2.4.18 may fill in the "Unknown"s) 42 43 If you can't see it please look on quirk_sis_96x_smbus 44 (drivers/pci/quirks.c) (also if southbridge detection fails) 45 46 I suspect that this driver could be made to work for the following SiS 47 chipsets as well: 635, and 635T. If anyone owns a board with those chips 48 AND is willing to risk crashing & burning an otherwise well-behaved kernel 49 in the name of progress... please contact me at <mhoffman@lightlink.com> or 50 via the linux-i2c mailing list: <linux-i2c@vger.kernel.org>. Please send bug 51 reports and/or success stories as well. 52 53 54 TO DOs 55 ------ 56 57 * The driver does not support SMBus block reads/writes; I may add them if a 58 scenario is found where they're needed. 59 60 61 Thank You 62 --------- 63 64 Mark D. Studebaker <mdsxyz123@yahoo.com> 65 - design hints and bug fixes 66 67 Alexander Maylsh <amalysh@web.de> 68 - ditto, plus an important datasheet... almost the one I really wanted 69 70 Hans-Günter Lütke Uphues <hg_lu@t-online.de> 71 - patch for SiS735 72 73 Robert Zwerus <arzie@dds.nl> 74 - testing for SiS645DX 75 76 Kianusch Sayah Karadji <kianusch@sk-tech.net> 77 - patch for SiS645DX/962 78 79 Ken Healy 80 - patch for SiS655 81 82 To anyone else who has written w/ feedback, thanks!
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