1 ========================
2 Kernel driver i2c-sis96x
3 ========================
5 Replaces 2.4.x i2c-sis645
9 * Silicon Integrated Systems Corp (SiS)
11 Any combination of these host bridges:
12 645, 645DX (aka 646), 648, 650, 651, 655, 735, 745, 746
14 and these south bridges:
17 Author: Mark M. Hoffman <mhoffman@lightlink.com>
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).
29 The command ``lspci`` as root should produce something like these lines::
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
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
41 (kernel versions later than 2.4.18 may fill in the "Unknown"s)
43 If you can't see it please look on quirk_sis_96x_smbus
44 (drivers/pci/quirks.c) (also if southbridge detection fails)
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.
57 * The driver does not support SMBus block reads/writes; I may add them if a
58 scenario is found where they're needed.
64 Mark D. Studebaker <mdsxyz123@yahoo.com>
65 - design hints and bug fixes
67 Alexander Maylsh <amalysh@web.de>
68 - ditto, plus an important datasheet... almost the one I really wanted
70 Hans-Günter Lütke Uphues <hg_lu@t-online.de>
73 Robert Zwerus <arzie@dds.nl>
74 - testing for SiS645DX
76 Kianusch Sayah Karadji <kianusch@sk-tech.net>
77 - patch for SiS645DX/962
82 To anyone else who has written w/ feedback, thanks!