1 Kernel driver adc128d818 2 ======================== 3 4 Supported chips: 5 6 * Texas Instruments ADC818D818 7 8 Prefix: 'adc818d818' 9 10 Addresses scanned: I2C 0x1d, 0x1e, 0x1f, 0 11 12 Datasheet: Publicly available at the TI we 13 14 Author: Guenter Roeck 15 16 Description 17 ----------- 18 19 This driver implements support for the Texas I 20 It is described as 'ADC System Monitor with Te 21 22 The ADC128D818 implements one temperature sens 23 24 Temperatures are measured in degrees Celsius. 25 When the HOT Temperature Limit is crossed, thi 26 be reasserted until the temperature drops belo 27 Measurements are guaranteed between -55 and +1 28 measurement has a resolution of 0.5 degrees; t 29 of 1 degree. 30 31 Voltage sensors (also known as IN sensors) rep 32 An alarm is triggered if the voltage has cross 33 or maximum limit. Note that minimum in this ca 34 zero'; this is important for negative voltage 35 inputs can measure voltages between 0 and 2.55 36 of 0.625 mV. 37 38 If an alarm triggers, it will remain triggered 39 is read at least once. This means that the cau 40 already have disappeared by the time the alarm 41 caches the alarm status for each sensor until 42 once, to ensure that alarms are reported to us 43 44 The ADC128D818 only updates its values approxi 45 reading it more often will do no harm, but wil 46 47 In addition to the scanned address list, the c 48 addresses 0x35 to 0x37. Those addresses are no 49 the driver explicitly if the chip is configure 50 your system.
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