2f8ea97a45
Drop the reset parameter of the w83627hf driver. It seems it wasn't that useful. It was dropped from the Linux 2.4 version of this driver back in July 2004. The only users who have reported that they were still using this parameter, needed it to switch the chip from automatic fan speed control back to manual mode. Now that the driver creates pwmN_enable sysfs files, users will be able to use these files instead, which is way less agressive. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Dominik Geyer <dominik.geyer@gmx.de>
72 lines
2.8 KiB
Text
72 lines
2.8 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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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://www.lm-sensors.org/browser/lm-sensors/trunk/doc/vid
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