1Kernel driver w83l785ts
2=======================
3
4Supported chips:
5
6  * Winbond W83L785TS-S
7
8    Prefix: 'w83l785ts'
9
10    Addresses scanned: I2C 0x2e
11
12    Datasheet: Publicly available at the Winbond USA website
13
14	       http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83L785TS-S.pdf
15
16Authors:
17	Jean Delvare <jdelvare@suse.de>
18
19Description
20-----------
21
22The W83L785TS-S is a digital temperature sensor. It senses the
23temperature of a single external diode. The high limit is
24theoretically defined as 85 or 100 degrees C through a combination
25of external resistors, so the user cannot change it. Values seen so
26far suggest that the two possible limits are actually 95 and 110
27degrees C. The datasheet is rather poor and obviously inaccurate
28on several points including this one.
29
30All temperature values are given in degrees Celsius. Resolution
31is 1.0 degree. See the datasheet for details.
32
33The w83l785ts driver will not update its values more frequently than
34every other second; reading them more often will do no harm, but will
35return 'old' values.
36
37Known Issues
38------------
39
40On some systems (Asus), the BIOS is known to interfere with the driver
41and cause read errors. Or maybe the W83L785TS-S chip is simply unreliable,
42we don't really know. The driver will retry a given number of times
43(5 by default) and then give up, returning the old value (or 0 if
44there is no old value). It seems to work well enough so that you should
45not notice anything. Thanks to James Bolt for helping test this feature.
46