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- Kernel driver w83l785ts
- =======================
- Supported chips:
- * Winbond W83L785TS-S
- Prefix: 'w83l785ts'
- Addresses scanned: I2C 0x2e
- Datasheet: Publicly available at the Winbond USA website
- http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83L785TS-S.pdf
- Authors:
- Jean Delvare <jdelvare@suse.de>
- Description
- -----------
- The W83L785TS-S is a digital temperature sensor. It senses the
- temperature of a single external diode. The high limit is
- theoretically defined as 85 or 100 degrees C through a combination
- of external resistors, so the user cannot change it. Values seen so
- far suggest that the two possible limits are actually 95 and 110
- degrees C. The datasheet is rather poor and obviously inaccurate
- on several points including this one.
- All temperature values are given in degrees Celsius. Resolution
- is 1.0 degree. See the datasheet for details.
- The w83l785ts driver will not update its values more frequently than
- every other second; reading them more often will do no harm, but will
- return 'old' values.
- Known Issues
- ------------
- On some systems (Asus), the BIOS is known to interfere with the driver
- and cause read errors. Or maybe the W83L785TS-S chip is simply unreliable,
- we don't really know. The driver will retry a given number of times
- (5 by default) and then give up, returning the old value (or 0 if
- there is no old value). It seems to work well enough so that you should
- not notice anything. Thanks to James Bolt for helping test this feature.
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