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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'
Guenter Roecka1fac922013-03-15 12:55:08 -070011 Addresses scanned: I2C 0x4c, 0x4d, 0x4e
Andre Prendelcd4e96c2009-06-15 18:39:49 +020012 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp411.html
Guenter Roecka1fac922013-03-15 12:55:08 -070013 * Texas Instruments TMP431
14 Prefix: 'tmp431'
15 Addresses scanned: I2C 0x4c, 0x4d
16 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp431.html
Guenter Roeck29dd3b62013-03-28 01:36:44 -070017 * Texas Instruments TMP432
18 Prefix: 'tmp432'
19 Addresses scanned: I2C 0x4c, 0x4d
20 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp432.html
Patrick Titiano06adbae2014-12-04 17:45:51 +010021 * Texas Instruments TMP435
22 Prefix: 'tmp435'
Guenter Roeck907a6d52014-12-05 10:15:03 -080023 Addresses scanned: I2C 0x37, 0x48 - 0x4f
Patrick Titiano06adbae2014-12-04 17:45:51 +010024 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp435.html
Andre Prendelcd4e96c2009-06-15 18:39:49 +020025
26Authors:
27 Hans de Goede <hdegoede@redhat.com>
28 Andre Prendel <andre.prendel@gmx.de>
29
30Description
31-----------
32
Guenter Roecka1fac922013-03-15 12:55:08 -070033This driver implements support for Texas Instruments TMP401, TMP411,
Patrick Titiano06adbae2014-12-04 17:45:51 +010034TMP431, TMP432 and TMP435 chips. These chips implement one or two remote
35and one local temperature sensors. Temperature is measured in degrees
Andre Prendelcd4e96c2009-06-15 18:39:49 +020036Celsius. Resolution of the remote sensor is 0.0625 degree. Local
37sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not
38supported by the driver so far, so using the default resolution of 0.5
39degree).
40
41The driver provides the common sysfs-interface for temperatures (see
Guenter Roecka1fac922013-03-15 12:55:08 -070042Documentation/hwmon/sysfs-interface under Temperatures).
Andre Prendelcd4e96c2009-06-15 18:39:49 +020043
Guenter Roecka1fac922013-03-15 12:55:08 -070044The TMP411 and TMP431 chips are compatible with TMP401. TMP411 provides
45some additional features.
Andre Prendelcd4e96c2009-06-15 18:39:49 +020046
47* Minimum and Maximum temperature measured since power-on, chip-reset
48
49 Exported via sysfs attributes tempX_lowest and tempX_highest.
50
51* Reset of historical minimum/maximum temperature measurements
52
53 Exported via sysfs attribute temp_reset_history. Writing 1 to this
54 file triggers a reset.
Guenter Roeck29dd3b62013-03-28 01:36:44 -070055
56TMP432 is compatible with TMP401 and TMP431. It supports two external
57temperature sensors.