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Diffstat (limited to 'kernel/Documentation/hwmon/tmp401')
| -rw-r--r-- | kernel/Documentation/hwmon/tmp401 | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/kernel/Documentation/hwmon/tmp401 b/kernel/Documentation/hwmon/tmp401 new file mode 100644 index 000000000..711f75e18 --- /dev/null +++ b/kernel/Documentation/hwmon/tmp401 @@ -0,0 +1,57 @@ +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 + +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 and TMP435 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. |