projects / linux-block.git / blame
| 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 | |
| b32570a4 MCC |
46 | |
| 47 | ||
| cd4e96c5 | 48 | Authors: |
| b32570a4 MCC |
49 | |
| 50 | - Hans de Goede <hdegoede@redhat.com> | |
| 51 | - Andre Prendel <andre.prendel@gmx.de> | |
| cd4e96c5 AP |
52 | |
| 53 | Description | |
| 54 | ----------- | |
| 55 | ||
| a1fac92b | 56 | This driver implements support for Texas Instruments TMP401, TMP411, |
| 38d9f06c | 57 | TMP431, TMP432, and TMP435 chips. These chips implement one or two |
| c0a68601 | 58 | remote and one local temperature sensors. Temperature is measured in degrees |
| cd4e96c5 AP |
59 | Celsius. Resolution of the remote sensor is 0.0625 degree. Local |
| 60 | 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 default resolution of 0.5 | |
| 62 | degree). | |
| 63 | ||
| 64 | The driver provides the common sysfs-interface for temperatures (see | |
| 7ebd8b66 | 65 | Documentation/hwmon/sysfs-interface.rst under Temperatures). |
| cd4e96c5 | 66 | |
| a1fac92b GR |
67 | The TMP411 and TMP431 chips are compatible with TMP401. TMP411 provides |
| 68 | some additional features. | |
| cd4e96c5 AP |
69 | |
| 70 | * Minimum and Maximum temperature measured since power-on, chip-reset | |
| 71 | ||
| 72 | Exported via sysfs attributes tempX_lowest and tempX_highest. | |
| 73 | ||
| 74 | * Reset of historical minimum/maximum temperature measurements | |
| 75 | ||
| 76 | Exported via sysfs attribute temp_reset_history. Writing 1 to this | |
| 77 | file triggers a reset. | |
| 29dd3b64 GR |
78 | |
| 79 | TMP432 is compatible with TMP401 and TMP431. It supports two external | |
| 80 | temperature sensors. |