1Kernel driver adt7410 2===================== 3 4Supported chips: 5 * Analog Devices ADT7410 6 Prefix: 'adt7410' 7 Addresses scanned: I2C 0x48 - 0x4B 8 Datasheet: Publicly available at the Analog Devices website 9 http://www.analog.com/static/imported-files/data_sheets/ADT7410.pdf 10 11Author: Hartmut Knaack <knaack.h@gmx.de> 12 13Description 14----------- 15 16The ADT7410 is a temperature sensor with rated temperature range of -55°C to 17+150°C. It has a high accuracy of +/-0.5°C and can be operated at a resolution 18of 13 bits (0.0625°C) or 16 bits (0.0078°C). The sensor provides an INT pin to 19indicate that a minimum or maximum temperature set point has been exceeded, as 20well as a critical temperature (CT) pin to indicate that the critical 21temperature set point has been exceeded. Both pins can be set up with a common 22hysteresis of 0°C - 15°C and a fault queue, ranging from 1 to 4 events. Both 23pins can individually set to be active-low or active-high, while the whole 24device can either run in comparator mode or interrupt mode. The ADT7410 25supports continous temperature sampling, as well as sampling one temperature 26value per second or even justget one sample on demand for power saving. 27Besides, it can completely power down its ADC, if power management is 28required. 29 30Configuration Notes 31------------------- 32 33Since the device uses one hysteresis value, which is an offset to minimum, 34maximum and critical temperature, it can only be set for temp#_max_hyst. 35However, temp#_min_hyst and temp#_crit_hyst show their corresponding 36hysteresis. 37The device is set to 16 bit resolution and comparator mode. 38 39sysfs-Interface 40--------------- 41 42temp#_input - temperature input 43temp#_min - temperature minimum setpoint 44temp#_max - temperature maximum setpoint 45temp#_crit - critical temperature setpoint 46temp#_min_hyst - hysteresis for temperature minimum (read-only) 47temp#_max_hyst - hysteresis for temperature maximum (read/write) 48temp#_crit_hyst - hysteresis for critical temperature (read-only) 49temp#_min_alarm - temperature minimum alarm flag 50temp#_max_alarm - temperature maximum alarm flag 51temp#_crit_alarm - critical temperature alarm flag 52