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The wiki is being retired!

Documentation is now handled by the same processes we use for code: Add something to the Documentation/ directory in the coreboot repo, and it will be rendered to Contributions welcome!

Superiotool is a GPL'd user-space helper tool for LinuxBIOS development purposes (but may also be useful for other things). It allows you to detect which Super I/O you have on your mainboard, and it can provide detailed information about the register contents of the Super I/O.

Supported devices

Vendor Super I/O Detection Register dump
Fintek F71805 Yes Yes
Fintek F71872 Yes Yes
ITE IT8702F Yes No
ITE IT8705F Yes No
ITE IT8708F Yes Yes
ITE IT8710F Yes No
ITE IT8712F Yes Yes
ITE IT8716F Yes Yes
ITE IT8718F Yes No
ITE IT8726F ? ?
NSC1 PC8374 Yes Yes
SMSC FDC37N769 Yes Yes
Winbond W83697HF/F Yes Yes
Winbond W83627EHF/EF/EHG/EG Yes Yes

1 Previosly National Semiconductor, now bought by Winbond.


$ svn co svn://
$ make
$ sudo make install


Probe/detect the Super I/O in your mainboard:

$ superiotool

Detailed register dump of the Super I/O (if detected):

$ superiotool -d

Please see the README for further information.

GNU head This work is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or any later version. This work is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.