tmp401.rst (2040B)
1Kernel driver tmp401 2==================== 3 4Supported chips: 5 6 * Texas Instruments TMP401 7 8 Prefix: 'tmp401' 9 10 Addresses scanned: I2C 0x4c 11 12 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp401.html 13 14 * Texas Instruments TMP411 15 16 Prefix: 'tmp411' 17 18 Addresses scanned: I2C 0x4c, 0x4d, 0x4e 19 20 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp411.html 21 22 * Texas Instruments TMP431 23 24 Prefix: 'tmp431' 25 26 Addresses scanned: I2C 0x4c, 0x4d 27 28 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp431.html 29 30 * Texas Instruments TMP432 31 32 Prefix: 'tmp432' 33 34 Addresses scanned: I2C 0x4c, 0x4d 35 36 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp432.html 37 38 * Texas Instruments TMP435 39 40 Prefix: 'tmp435' 41 42 Addresses scanned: I2C 0x48 - 0x4f 43 44 Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp435.html 45 46 47 48Authors: 49 50 - Hans de Goede <hdegoede@redhat.com> 51 - Andre Prendel <andre.prendel@gmx.de> 52 53Description 54----------- 55 56This driver implements support for Texas Instruments TMP401, TMP411, 57TMP431, TMP432, and TMP435 chips. These chips implement one or two 58remote and one local temperature sensors. Temperature is measured in degrees 59Celsius. Resolution of the remote sensor is 0.0625 degree. Local 60sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not 61supported by the driver so far, so using the default resolution of 0.5 62degree). 63 64The driver provides the common sysfs-interface for temperatures (see 65Documentation/hwmon/sysfs-interface.rst under Temperatures). 66 67The TMP411 and TMP431 chips are compatible with TMP401. TMP411 provides 68some additional features. 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. 78 79TMP432 is compatible with TMP401 and TMP431. It supports two external 80temperature sensors.