Based on kernel version 3.19. Page generated on 2015-02-13 21:21 EST.
1 Kernel driver lm95245 2 ================== 3 4 Supported chips: 5 * TI LM95235 6 Addresses scanned: I2C 0x18, 0x29, 0x4c 7 Datasheet: Publicly available at the TI website 8 http://www.ti.com/lit/ds/symlink/lm95235.pdf 9 * TI / National Semiconductor LM95245 10 Addresses scanned: I2C 0x18, 0x19, 0x29, 0x4c, 0x4d 11 Datasheet: Publicly available at the TI website 12 http://www.ti.com/lit/ds/symlink/lm95245.pdf 13 14 15 Author: Alexander Stein <firstname.lastname@example.org> 16 17 Description 18 ----------- 19 20 LM95235 and LM95245 are 11-bit digital temperature sensors with a 2-wire System 21 Management Bus (SMBus) interface and TruTherm technology that can monitor 22 the temperature of a remote diode as well as its own temperature. 23 The chips can be used to very accurately monitor the temperature of 24 external devices such as microprocessors. 25 26 All temperature values are given in millidegrees Celsius. Local temperature 27 is given within a range of -127 to +127.875 degrees. Remote temperatures are 28 given within a range of -127 to +255 degrees. Resolution depends on 29 temperature input and range. 30 31 Each sensor has its own critical limit. Additionally, there is a relative 32 hysteresis value common to both critical limits. To make life easier to 33 user-space applications, two absolute values are exported, one for each 34 channel, but these values are of course linked. Only the local hysteresis 35 can be set from user-space, and the same delta applies to the remote 36 hysteresis. 37 38 The lm95245 driver can change its update interval to a fixed set of values. 39 It will round up to the next selectable interval. See the datasheet for exact 40 values. Reading sensor values more often will do no harm, but will return 41 'old' values.