| 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 |
| |