1 Kernel driver tmp401 1 Kernel driver tmp401
2 ==================== 2 ====================
3 3
4 Supported chips: 4 Supported chips:
5 5
6 * Texas Instruments TMP401 6 * Texas Instruments TMP401
7 7
8 Prefix: 'tmp401' 8 Prefix: 'tmp401'
9 9
10 Addresses scanned: I2C 0x4c 10 Addresses scanned: I2C 0x4c
11 11
12 Datasheet: http://focus.ti.com/docs/prod/f 12 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp401.html
13 13
14 * Texas Instruments TMP411 14 * Texas Instruments TMP411
15 15
16 Prefix: 'tmp411' 16 Prefix: 'tmp411'
17 17
18 Addresses scanned: I2C 0x4c, 0x4d, 0x4e 18 Addresses scanned: I2C 0x4c, 0x4d, 0x4e
19 19
20 Datasheet: http://focus.ti.com/docs/prod/f 20 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp411.html
21 21
22 * Texas Instruments TMP431 22 * Texas Instruments TMP431
23 23
24 Prefix: 'tmp431' 24 Prefix: 'tmp431'
25 25
26 Addresses scanned: I2C 0x4c, 0x4d 26 Addresses scanned: I2C 0x4c, 0x4d
27 27
28 Datasheet: http://focus.ti.com/docs/prod/f 28 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp431.html
29 29
30 * Texas Instruments TMP432 30 * Texas Instruments TMP432
31 31
32 Prefix: 'tmp432' 32 Prefix: 'tmp432'
33 33
34 Addresses scanned: I2C 0x4c, 0x4d 34 Addresses scanned: I2C 0x4c, 0x4d
35 35
36 Datasheet: http://focus.ti.com/docs/prod/f 36 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp432.html
37 37
38 * Texas Instruments TMP435 38 * Texas Instruments TMP435
39 39
40 Prefix: 'tmp435' 40 Prefix: 'tmp435'
41 41
42 Addresses scanned: I2C 0x48 - 0x4f 42 Addresses scanned: I2C 0x48 - 0x4f
43 43
44 Datasheet: http://focus.ti.com/docs/prod/f 44 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp435.html
45 45
>> 46 * Texas Instruments TMP461
>> 47
>> 48 Prefix: 'tmp461'
>> 49
>> 50 Datasheet: http://www.ti.com/product/tmp461
>> 51
46 52
47 53
48 Authors: 54 Authors:
49 55
50 - Hans de Goede <hdegoede@redhat.com> 56 - Hans de Goede <hdegoede@redhat.com>
51 - Andre Prendel <andre.prendel@gmx.de> 57 - Andre Prendel <andre.prendel@gmx.de>
52 58
53 Description 59 Description
54 ----------- 60 -----------
55 61
56 This driver implements support for Texas Instr 62 This driver implements support for Texas Instruments TMP401, TMP411,
57 TMP431, TMP432, and TMP435 chips. These chips !! 63 TMP431, TMP432, TMP435, and TMP461 chips. These chips implement one or two
58 remote and one local temperature sensors. Temp 64 remote and one local temperature sensors. Temperature is measured in degrees
59 Celsius. Resolution of the remote sensor is 0. 65 Celsius. Resolution of the remote sensor is 0.0625 degree. Local
60 sensor resolution can be set to 0.5, 0.25, 0.1 66 sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not
61 supported by the driver so far, so using the d 67 supported by the driver so far, so using the default resolution of 0.5
62 degree). 68 degree).
63 69
64 The driver provides the common sysfs-interface 70 The driver provides the common sysfs-interface for temperatures (see
65 Documentation/hwmon/sysfs-interface.rst under 71 Documentation/hwmon/sysfs-interface.rst under Temperatures).
66 72
67 The TMP411 and TMP431 chips are compatible wit 73 The TMP411 and TMP431 chips are compatible with TMP401. TMP411 provides
68 some additional features. 74 some additional features.
69 75
70 * Minimum and Maximum temperature measured sin 76 * Minimum and Maximum temperature measured since power-on, chip-reset
71 77
72 Exported via sysfs attributes tempX_lowest a 78 Exported via sysfs attributes tempX_lowest and tempX_highest.
73 79
74 * Reset of historical minimum/maximum temperat 80 * Reset of historical minimum/maximum temperature measurements
75 81
76 Exported via sysfs attribute temp_reset_hist 82 Exported via sysfs attribute temp_reset_history. Writing 1 to this
77 file triggers a reset. 83 file triggers a reset.
78 84
79 TMP432 is compatible with TMP401 and TMP431. I 85 TMP432 is compatible with TMP401 and TMP431. It supports two external
80 temperature sensors. 86 temperature sensors.
>> 87
>> 88 TMP461 is compatible with TMP401. It supports offset correction
>> 89 that is applied to the remote sensor.
>> 90
>> 91 * Sensor offset values are temperature values
>> 92
>> 93 Exported via sysfs attribute tempX_offset
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