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review.shift-gmbh.com / SHIFTPHONES / kernel / shift / mainline / 7ebd8b66dd9e5a0b65e5ee5e2b8e7ca382ec97b7 / . / Documentation / hwmon / tmp401.rst
blob: 6a05a0719bc78053d485db171968ae2daca66a46 [file] [log] [blame]
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]1Kernel driver tmp401
2====================
3
4Supported chips:
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]5
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]6 * Texas Instruments TMP401
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]7
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]8 Prefix: 'tmp401'
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]9
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]10 Addresses scanned: I2C 0x4c
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]11
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]12 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp401.html
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]13
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]14 * Texas Instruments TMP411
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]15
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]16 Prefix: 'tmp411'
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]17
Guenter Roecka1fac922013-03-15 12:55:08 -0700[diff] [blame]18 Addresses scanned: I2C 0x4c, 0x4d, 0x4e
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]19
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]20 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp411.html
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]21
Guenter Roecka1fac922013-03-15 12:55:08 -0700[diff] [blame]22 * Texas Instruments TMP431
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]23
Guenter Roecka1fac922013-03-15 12:55:08 -0700[diff] [blame]24 Prefix: 'tmp431'
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]25
Guenter Roecka1fac922013-03-15 12:55:08 -0700[diff] [blame]26 Addresses scanned: I2C 0x4c, 0x4d
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]27
Guenter Roecka1fac922013-03-15 12:55:08 -0700[diff] [blame]28 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp431.html
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]29
Guenter Roeck29dd3b62013-03-28 01:36:44 -0700[diff] [blame]30 * Texas Instruments TMP432
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]31
Guenter Roeck29dd3b62013-03-28 01:36:44 -0700[diff] [blame]32 Prefix: 'tmp432'
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]33
Guenter Roeck29dd3b62013-03-28 01:36:44 -0700[diff] [blame]34 Addresses scanned: I2C 0x4c, 0x4d
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]35
Guenter Roeck29dd3b62013-03-28 01:36:44 -0700[diff] [blame]36 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp432.html
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]37
Patrick Titiano06adbae2014-12-04 17:45:51 +0100[diff] [blame]38 * Texas Instruments TMP435
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]39
Patrick Titiano06adbae2014-12-04 17:45:51 +0100[diff] [blame]40 Prefix: 'tmp435'
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]41
Guenter Roeck9aecac02015-05-27 16:11:48 -0700[diff] [blame]42 Addresses scanned: I2C 0x48 - 0x4f
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]43
Patrick Titiano06adbae2014-12-04 17:45:51 +0100[diff] [blame]44 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp435.html
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]45
Andrew F. Davisc0a686012016-06-08 12:00:54 -0500[diff] [blame]46 * Texas Instruments TMP461
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]47
Andrew F. Davisc0a686012016-06-08 12:00:54 -0500[diff] [blame]48 Prefix: 'tmp461'
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]49
Andrew F. Davisc0a686012016-06-08 12:00:54 -0500[diff] [blame]50 Datasheet: http://www.ti.com/product/tmp461
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]51
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]52
53
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]54Authors:
Mauro Carvalho Chehabb32570a2019-04-17 06:46:27 -0300[diff] [blame]55
56 - Hans de Goede <hdegoede@redhat.com>
57 - Andre Prendel <andre.prendel@gmx.de>
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]58
59Description
60-----------
61
Guenter Roecka1fac922013-03-15 12:55:08 -0700[diff] [blame]62This driver implements support for Texas Instruments TMP401, TMP411,
Andrew F. Davisc0a686012016-06-08 12:00:54 -0500[diff] [blame]63TMP431, TMP432, TMP435, and TMP461 chips. These chips implement one or two
64remote and one local temperature sensors. Temperature is measured in degrees
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]65Celsius. Resolution of the remote sensor is 0.0625 degree. Local
66sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not
67supported by the driver so far, so using the default resolution of 0.5
68degree).
69
70The driver provides the common sysfs-interface for temperatures (see
Mauro Carvalho Chehab7ebd8b662019-04-17 06:46:29 -0300[diff] [blame^]71Documentation/hwmon/sysfs-interface.rst under Temperatures).
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]72
Guenter Roecka1fac922013-03-15 12:55:08 -0700[diff] [blame]73The TMP411 and TMP431 chips are compatible with TMP401. TMP411 provides
74some additional features.
Andre Prendelcd4e96c2009-06-15 18:39:49 +0200[diff] [blame]75
76* Minimum and Maximum temperature measured since power-on, chip-reset
77
78 Exported via sysfs attributes tempX_lowest and tempX_highest.
79
80* Reset of historical minimum/maximum temperature measurements
81
82 Exported via sysfs attribute temp_reset_history. Writing 1 to this
83 file triggers a reset.
Guenter Roeck29dd3b62013-03-28 01:36:44 -0700[diff] [blame]84
85TMP432 is compatible with TMP401 and TMP431. It supports two external
86temperature sensors.
Andrew F. Davisc0a686012016-06-08 12:00:54 -0500[diff] [blame]87
88TMP461 is compatible with TMP401. It supports offset correction
89that is applied to the remote sensor.
90
91* Sensor offset values are temperature values
92
93 Exported via sysfs attribute tempX_offset