Kernel driver dps920ab

Supported chips:

  • Delta DPS920AB

    Prefix: ‘dps920ab’

    Addresses scanned: -

Robert Marko <>


This driver implements support for Delta DPS920AB 920W 54V DC single output power supply with PMBus support.

The driver is a client driver to the core PMBus driver. Please see Kernel driver pmbus for details on PMBus client drivers.

Usage Notes

This driver does not auto-detect devices. You will have to instantiate the devices explicitly. Please see How to instantiate I2C devices for details.

Sysfs entries

curr1_label “iin”
curr1_input Measured input current
curr1_alarm Input current high alarm
curr2_label “iout1”
curr2_input Measured output current
curr2_max Maximum output current
curr2_rated_max Maximum rated output current
in1_label “vin”
in1_input Measured input voltage
in1_alarm Input voltage alarm
in2_label “vout1”
in2_input Measured output voltage
in2_rated_min Minimum rated output voltage
in2_rated_max Maximum rated output voltage
in2_alarm Output voltage alarm
power1_label “pin”
power1_input Measured input power
power1_alarm Input power high alarm
power2_label “pout1”
power2_input Measured output power
power2_rated_max Maximum rated output power
temp[1-3]_input Measured temperature
temp[1-3]_alarm Temperature alarm
fan1_alarm Fan 1 warning.
fan1_fault Fan 1 fault.
fan1_input Fan 1 speed in RPM.