Based on kernel version 6.11
. Page generated on 2024-09-24 08:21 EST
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | Kernel driver ltc2990 ===================== Supported chips: * Linear Technology LTC2990 Prefix: 'ltc2990' Addresses scanned: - Datasheet: http://www.linear.com/product/ltc2990 Author: - Mike Looijmans <mike.looijmans@topic.nl> - Tom Levens <tom.levens@cern.ch> Description ----------- LTC2990 is a Quad I2C Voltage, Current and Temperature Monitor. The chip's inputs can measure 4 voltages, or two inputs together (1+2 and 3+4) can be combined to measure a differential voltage, which is typically used to measure current through a series resistor, or a temperature with an external diode. Usage Notes ----------- This driver does not probe for PMBus devices. You will have to instantiate devices explicitly. Sysfs attributes ---------------- ============= ================================================== in0_input Voltage at Vcc pin in millivolt (range 2.5V to 5V) temp1_input Internal chip temperature in millidegrees Celsius ============= ================================================== A subset of the following attributes are visible, depending on the measurement mode of the chip. ============= ========================================================== in[1-4]_input Voltage at V[1-4] pin in millivolt temp2_input External temperature sensor TR1 in millidegrees Celsius temp3_input External temperature sensor TR2 in millidegrees Celsius curr1_input Current in mA across V1-V2 assuming a 1mOhm sense resistor curr2_input Current in mA across V3-V4 assuming a 1mOhm sense resistor ============= ========================================================== The "curr*_input" measurements actually report the voltage drop across the input pins in microvolts. This is equivalent to the current through a 1mOhm sense resistor. Divide the reported value by the actual sense resistor value in mOhm to get the actual value. |