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Andre Prendelcd4e96c2009-06-15 18:39:49 +02001Kernel driver tmp401
2====================
3
4Supported 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
14Authors:
15 Hans de Goede <hdegoede@redhat.com>
16 Andre Prendel <andre.prendel@gmx.de>
17
18Description
19-----------
20
21This driver implements support for Texas Instruments TMP401 and
22TMP411 chips. These chips implements one remote and one local
23temperature sensor. Temperature is measured in degrees
24Celsius. Resolution of the remote sensor is 0.0625 degree. Local
25sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not
26supported by the driver so far, so using the default resolution of 0.5
27degree).
28
29The driver provides the common sysfs-interface for temperatures (see
30/Documentation/hwmon/sysfs-interface under Temperatures).
31
32The TMP411 chip is compatible with TMP401. It provides some additional
33features.
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.