Commit | Line | Data |
---|---|---|
cd4e96c5 AP |
1 | Kernel driver tmp401 |
2 | ==================== | |
3 | ||
4 | Supported chips: | |
b32570a4 | 5 | |
cd4e96c5 | 6 | * Texas Instruments TMP401 |
b32570a4 | 7 | |
cd4e96c5 | 8 | Prefix: 'tmp401' |
b32570a4 | 9 | |
cd4e96c5 | 10 | Addresses scanned: I2C 0x4c |
b32570a4 | 11 | |
cd4e96c5 | 12 | Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp401.html |
b32570a4 | 13 | |
cd4e96c5 | 14 | * Texas Instruments TMP411 |
b32570a4 | 15 | |
cd4e96c5 | 16 | Prefix: 'tmp411' |
b32570a4 | 17 | |
a1fac92b | 18 | Addresses scanned: I2C 0x4c, 0x4d, 0x4e |
b32570a4 | 19 | |
cd4e96c5 | 20 | Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp411.html |
b32570a4 | 21 | |
a1fac92b | 22 | * Texas Instruments TMP431 |
b32570a4 | 23 | |
a1fac92b | 24 | Prefix: 'tmp431' |
b32570a4 | 25 | |
a1fac92b | 26 | Addresses scanned: I2C 0x4c, 0x4d |
b32570a4 | 27 | |
a1fac92b | 28 | Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp431.html |
b32570a4 | 29 | |
29dd3b64 | 30 | * Texas Instruments TMP432 |
b32570a4 | 31 | |
29dd3b64 | 32 | Prefix: 'tmp432' |
b32570a4 | 33 | |
29dd3b64 | 34 | Addresses scanned: I2C 0x4c, 0x4d |
b32570a4 | 35 | |
29dd3b64 | 36 | Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp432.html |
b32570a4 | 37 | |
06adbaec | 38 | * Texas Instruments TMP435 |
b32570a4 | 39 | |
06adbaec | 40 | Prefix: 'tmp435' |
b32570a4 | 41 | |
9aecac04 | 42 | Addresses scanned: I2C 0x48 - 0x4f |
b32570a4 | 43 | |
06adbaec | 44 | Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp435.html |
b32570a4 | 45 | |
c0a68601 | 46 | * Texas Instruments TMP461 |
b32570a4 | 47 | |
c0a68601 | 48 | Prefix: 'tmp461' |
b32570a4 | 49 | |
c0a68601 | 50 | Datasheet: http://www.ti.com/product/tmp461 |
cd4e96c5 | 51 | |
b32570a4 MCC |
52 | |
53 | ||
cd4e96c5 | 54 | Authors: |
b32570a4 MCC |
55 | |
56 | - Hans de Goede <hdegoede@redhat.com> | |
57 | - Andre Prendel <andre.prendel@gmx.de> | |
cd4e96c5 AP |
58 | |
59 | Description | |
60 | ----------- | |
61 | ||
a1fac92b | 62 | This driver implements support for Texas Instruments TMP401, TMP411, |
c0a68601 AD |
63 | TMP431, TMP432, TMP435, and TMP461 chips. These chips implement one or two |
64 | remote and one local temperature sensors. Temperature is measured in degrees | |
cd4e96c5 AP |
65 | Celsius. Resolution of the remote sensor is 0.0625 degree. Local |
66 | sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not | |
67 | supported by the driver so far, so using the default resolution of 0.5 | |
68 | degree). | |
69 | ||
70 | The driver provides the common sysfs-interface for temperatures (see | |
7ebd8b66 | 71 | Documentation/hwmon/sysfs-interface.rst under Temperatures). |
cd4e96c5 | 72 | |
a1fac92b GR |
73 | The TMP411 and TMP431 chips are compatible with TMP401. TMP411 provides |
74 | some additional features. | |
cd4e96c5 AP |
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. | |
29dd3b64 GR |
84 | |
85 | TMP432 is compatible with TMP401 and TMP431. It supports two external | |
86 | temperature sensors. | |
c0a68601 AD |
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 |