c2db6ce14a
Add support for the Winbond W83687THF chip to the w83627hf hardware monitoring driver. This new chip is almost similar to the already supported W83627THF chip, except for VID and a few other minor changes. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
77 lines
3 KiB
Text
77 lines
3 KiB
Text
Kernel driver w83627hf
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======================
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Supported chips:
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* Winbond W83627HF (ISA accesses ONLY)
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Prefix: 'w83627hf'
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Addresses scanned: ISA address retrieved from Super I/O registers
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Datasheet: http://www.winbond.com/PDF/sheet/w83627hf.pdf
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* Winbond W83627THF
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Prefix: 'w83627thf'
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Addresses scanned: ISA address retrieved from Super I/O registers
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Datasheet: http://www.winbond.com/PDF/sheet/w83627thf.pdf
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* Winbond W83697HF
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Prefix: 'w83697hf'
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Addresses scanned: ISA address retrieved from Super I/O registers
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Datasheet: http://www.winbond.com/PDF/sheet/697hf.pdf
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* Winbond W83637HF
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Prefix: 'w83637hf'
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Addresses scanned: ISA address retrieved from Super I/O registers
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Datasheet: http://www.winbond.com/PDF/sheet/w83637hf.pdf
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* Winbond W83687THF
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Prefix: 'w83687thf'
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Addresses scanned: ISA address retrieved from Super I/O registers
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Datasheet: Provided by Winbond on request
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Authors:
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Frodo Looijaard <frodol@dds.nl>,
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Philip Edelbrock <phil@netroedge.com>,
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Mark Studebaker <mdsxyz123@yahoo.com>,
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Bernhard C. Schrenk <clemy@clemy.org>
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Module Parameters
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-----------------
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* force_addr: int
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Initialize the ISA address of the sensors
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* force_i2c: int
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Initialize the I2C address of the sensors
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* init: int
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(default is 1)
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Use 'init=0' to bypass initializing the chip.
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Try this if your computer crashes when you load the module.
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* reset: int
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(default is 0)
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The driver used to reset the chip on load, but does no more. Use
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'reset=1' to restore the old behavior. Report if you need to do this.
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Description
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-----------
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This driver implements support for ISA accesses *only* for
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the Winbond W83627HF, W83627THF, W83697HF and W83637HF Super I/O chips.
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We will refer to them collectively as Winbond chips.
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This driver supports ISA accesses, which should be more reliable
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than i2c accesses. Also, for Tyan boards which contain both a
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Super I/O chip and a second i2c-only Winbond chip (often a W83782D),
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using this driver will avoid i2c address conflicts and complex
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initialization that were required in the w83781d driver.
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If you really want i2c accesses for these Super I/O chips,
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use the w83781d driver. However this is not the preferred method
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now that this ISA driver has been developed.
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The w83627_HF_ uses pins 110-106 as VID0-VID4. The w83627_THF_ uses the
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same pins as GPIO[0:4]. Technically, the w83627_THF_ does not support a
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VID reading. However the two chips have the identical 128 pin package. So,
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it is possible or even likely for a w83627thf to have the VID signals routed
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to these pins despite their not being labeled for that purpose. Therefore,
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the w83627thf driver interprets these as VID. If the VID on your board
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doesn't work, first see doc/vid in the lm_sensors package[1]. If that still
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doesn't help, you may just ignore the bogus VID reading with no harm done.
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For further information on this driver see the w83781d driver documentation.
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[1] http://www2.lm-sensors.nu/~lm78/cvs/browse.cgi/lm_sensors2/doc/vid
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