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- Kernel driver w83627hf
- ======================
- Supported chips:
- * Winbond W83627HF (ISA accesses ONLY)
- Prefix: 'w83627hf'
- Addresses scanned: ISA address retrieved from Super I/O registers
- Datasheet: http://www.winbond.com/PDF/sheet/w83627hf.pdf
- * Winbond W83627THF
- Prefix: 'w83627thf'
- Addresses scanned: ISA address retrieved from Super I/O registers
- Datasheet: http://www.winbond.com/PDF/sheet/w83627thf.pdf
- * Winbond W83697HF
- Prefix: 'w83697hf'
- Addresses scanned: ISA address retrieved from Super I/O registers
- Datasheet: http://www.winbond.com/PDF/sheet/697hf.pdf
- * Winbond W83637HF
- Prefix: 'w83637hf'
- Addresses scanned: ISA address retrieved from Super I/O registers
- Datasheet: http://www.winbond.com/PDF/sheet/w83637hf.pdf
- * Winbond W83687THF
- Prefix: 'w83687thf'
- Addresses scanned: ISA address retrieved from Super I/O registers
- Datasheet: Provided by Winbond on request
- Authors:
- Frodo Looijaard <frodol@dds.nl>,
- Philip Edelbrock <phil@netroedge.com>,
- Mark Studebaker <mdsxyz123@yahoo.com>,
- Bernhard C. Schrenk <clemy@clemy.org>
- Module Parameters
- -----------------
- * force_addr: int
- Initialize the ISA address of the sensors
- * force_i2c: int
- Initialize the I2C address of the sensors
- * init: int
- (default is 1)
- Use 'init=0' to bypass initializing the chip.
- Try this if your computer crashes when you load the module.
- * reset: int
- (default is 0)
- The driver used to reset the chip on load, but does no more. Use
- 'reset=1' to restore the old behavior. Report if you need to do this.
- Description
- -----------
- This driver implements support for ISA accesses *only* for
- the Winbond W83627HF, W83627THF, W83697HF and W83637HF Super I/O chips.
- We will refer to them collectively as Winbond chips.
- This driver supports ISA accesses, which should be more reliable
- than i2c accesses. Also, for Tyan boards which contain both a
- Super I/O chip and a second i2c-only Winbond chip (often a W83782D),
- using this driver will avoid i2c address conflicts and complex
- initialization that were required in the w83781d driver.
- If you really want i2c accesses for these Super I/O chips,
- use the w83781d driver. However this is not the preferred method
- now that this ISA driver has been developed.
- The w83627_HF_ uses pins 110-106 as VID0-VID4. The w83627_THF_ uses the
- same pins as GPIO[0:4]. Technically, the w83627_THF_ does not support a
- VID reading. However the two chips have the identical 128 pin package. So,
- it is possible or even likely for a w83627thf to have the VID signals routed
- to these pins despite their not being labeled for that purpose. Therefore,
- the w83627thf driver interprets these as VID. If the VID on your board
- doesn't work, first see doc/vid in the lm_sensors package[1]. If that still
- doesn't help, you may just ignore the bogus VID reading with no harm done.
- For further information on this driver see the w83781d driver documentation.
- [1] http://www2.lm-sensors.nu/~lm78/cvs/browse.cgi/lm_sensors2/doc/vid
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