| Kernel driver tmp401 |
| ==================== |
| |
| Supported chips: |
| * Texas Instruments TMP401 |
| Prefix: 'tmp401' |
| Addresses scanned: I2C 0x4c |
| Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp401.html |
| * Texas Instruments TMP411 |
| Prefix: 'tmp411' |
| Addresses scanned: I2C 0x4c, 0x4d, 0x4e |
| Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp411.html |
| * Texas Instruments TMP431 |
| Prefix: 'tmp431' |
| Addresses scanned: I2C 0x4c, 0x4d |
| Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp431.html |
| * Texas Instruments TMP432 |
| Prefix: 'tmp432' |
| Addresses scanned: I2C 0x4c, 0x4d |
| Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp432.html |
| * Texas Instruments TMP435 |
| Prefix: 'tmp435' |
| Addresses scanned: I2C 0x48 - 0x4f |
| Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp435.html |
| * Texas Instruments TMP461 |
| Prefix: 'tmp461' |
| Datasheet: http://www.ti.com/product/tmp461 |
| |
| Authors: |
| Hans de Goede <hdegoede@redhat.com> |
| Andre Prendel <andre.prendel@gmx.de> |
| |
| Description |
| ----------- |
| |
| This driver implements support for Texas Instruments TMP401, TMP411, |
| TMP431, TMP432, TMP435, and TMP461 chips. These chips implement one or two |
| remote and one local temperature sensors. Temperature is measured in degrees |
| Celsius. Resolution of the remote sensor is 0.0625 degree. Local |
| sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not |
| supported by the driver so far, so using the default resolution of 0.5 |
| degree). |
| |
| The driver provides the common sysfs-interface for temperatures (see |
| Documentation/hwmon/sysfs-interface under Temperatures). |
| |
| The TMP411 and TMP431 chips are compatible with TMP401. TMP411 provides |
| some additional features. |
| |
| * Minimum and Maximum temperature measured since power-on, chip-reset |
| |
| Exported via sysfs attributes tempX_lowest and tempX_highest. |
| |
| * Reset of historical minimum/maximum temperature measurements |
| |
| Exported via sysfs attribute temp_reset_history. Writing 1 to this |
| file triggers a reset. |
| |
| TMP432 is compatible with TMP401 and TMP431. It supports two external |
| temperature sensors. |
| |
| TMP461 is compatible with TMP401. It supports offset correction |
| that is applied to the remote sensor. |
| |
| * Sensor offset values are temperature values |
| |
| Exported via sysfs attribute tempX_offset |