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1 | Kernel driver tmp401 |
2 | ==================== |
3 | |
4 | Supported chips: |
5 | * Texas Instruments TMP401 |
6 | Prefix: 'tmp401' |
7 | Addresses scanned: I2C 0x4c |
8 | Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp401.html |
9 | * Texas Instruments TMP411 |
10 | Prefix: 'tmp411' |
11 | Addresses scanned: I2C 0x4c |
12 | Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp411.html |
13 | |
14 | Authors: |
15 | Hans de Goede <hdegoede@redhat.com> |
16 | Andre Prendel <andre.prendel@gmx.de> |
17 | |
18 | Description |
19 | ----------- |
20 | |
21 | This driver implements support for Texas Instruments TMP401 and |
22 | TMP411 chips. These chips implements one remote and one local |
23 | temperature sensor. Temperature is measured in degrees |
24 | Celsius. Resolution of the remote sensor is 0.0625 degree. Local |
25 | sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not |
26 | supported by the driver so far, so using the default resolution of 0.5 |
27 | degree). |
28 | |
29 | The driver provides the common sysfs-interface for temperatures (see |
30 | /Documentation/hwmon/sysfs-interface under Temperatures). |
31 | |
32 | The TMP411 chip is compatible with TMP401. It provides some additional |
33 | features. |
34 | |
35 | * Minimum and Maximum temperature measured since power-on, chip-reset |
36 | |
37 | Exported via sysfs attributes tempX_lowest and tempX_highest. |
38 | |
39 | * Reset of historical minimum/maximum temperature measurements |
40 | |
41 | Exported via sysfs attribute temp_reset_history. Writing 1 to this |
42 | file triggers a reset. |
43 |
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