67 строки
1.6 KiB
ReStructuredText
67 строки
1.6 KiB
ReStructuredText
|
Kernel driver tmp421
|
||
|
|
====================
|
||
|
|
|
||
|
|
Supported chips:
|
||
|
|
||
|
|
* Texas Instruments TMP421
|
||
|
|
|
||
|
|
Prefix: 'tmp421'
|
||
|
|
|
||
|
|
Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
|
||
|
|
|
||
|
|
Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
|
||
|
|
|
||
|
|
* Texas Instruments TMP422
|
||
|
|
|
||
|
|
Prefix: 'tmp422'
|
||
|
|
|
||
|
Addresses scanned: I2C 0x4c, 0x4d, 0x4e and 0x4f
|
||
|
|
|
||
|
|
Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
|
||
|
|
|
||
|
|
* Texas Instruments TMP423
|
||
|
|
|
||
|
|
Prefix: 'tmp423'
|
||
|
|
|
||
|
|
Addresses scanned: I2C 0x4c and 0x4d
|
||
|
|
|
||
|
|
Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
|
||
|
|
|
||
|
|
* Texas Instruments TMP441
|
||
|
|
|
||
|
|
Prefix: 'tmp441'
|
||
|
|
|
||
|
|
Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
|
||
|
|
|
||
|
|
Datasheet: http://www.ti.com/product/tmp441
|
||
|
|
|
||
|
|
* Texas Instruments TMP442
|
||
|
|
|
||
|
|
Prefix: 'tmp442'
|
||
|
|
|
||
|
|
Addresses scanned: I2C 0x4c and 0x4d
|
||
|
|
|
||
|
|
Datasheet: http://www.ti.com/product/tmp442
|
||
|
|
|
||
|
|
Authors:
|
||
|
|
|
||
|
|
Andre Prendel <andre.prendel@gmx.de>
|
||
|
|
|
||
|
|
Description
|
||
|
|
-----------
|
||
|
|
|
||
|
|
This driver implements support for Texas Instruments TMP421, TMP422,
|
||
|
|
TMP423, TMP441, and TMP442 temperature sensor chips. These chips
|
||
|
|
implement one local and up to one (TMP421, TMP441), up to two (TMP422,
|
||
|
|
TMP442) or up to three (TMP423) remote sensors. Temperature is measured
|
||
|
|
in degrees Celsius. The chips are wired over I2C/SMBus and specified
|
||
|
|
over a temperature range of -40 to +125 degrees Celsius. Resolution
|
||
|
|
for both the local and remote channels is 0.0625 degree C.
|
||
|
|
|
||
|
|
The chips support only temperature measurement. The driver exports
|
||
|
|
the temperature values via the following sysfs files:
|
||
|
|
|
||
|
|
**temp[1-4]_input**
|
||
|
|
|
||
|
|
**temp[2-4]_fault**
|