mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
45 lines
1.5 KiB
45 lines
1.5 KiB
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 <[email protected]> |
|
|
|
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.
|
|
|