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