| ======================== |
| Kernel driver i2c-sis96x |
| ======================== |
| |
| Replaces 2.4.x i2c-sis645 |
| |
| 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> |
| |
| 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 |
| 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 you can't see it please look on quirk_sis_96x_smbus |
| (drivers/pci/quirks.c) (also if southbridge detection fails) |
| |
| 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 linux-i2c mailing list: <linux-i2c@vger.kernel.org>. 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 You |
| --------- |
| |
| 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! |
