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Kernel driver bel-pfe

Documentation/hwmon/bel-pfe.rst

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Kernel driver bel-pfe

Supported chips:

Author: Tao Ren [email protected]

Description

This driver supports hardware monitoring for below power supply devices which support PMBus Protocol:

  • BEL PFE1100

    1100 Watt AC to DC power-factor-corrected (PFC) power supply. PMBus Communication Manual is not publicly available.

  • BEL PFE3000

    3000 Watt AC/DC power-factor-corrected (PFC) and DC-DC power supply. PMBus Communication Manual is not publicly available.

The driver is a client driver to the core PMBus driver. Please see Documentation/hwmon/pmbus.rst 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 Documentation/i2c/instantiating-devices.rst for details.

Example: the following will load the driver for an PFE3000 at address 0x20 on I2C bus #1::

$ modprobe bel-pfe
$ echo pfe3000 0x20 > /sys/bus/i2c/devices/i2c-1/new_device

Platform data support

The driver supports standard PMBus driver platform data.

Sysfs entries

======================= ======================================================= curr1_label "iin" curr1_input Measured input current curr1_max Input current max value curr1_max_alarm Input current max alarm

curr[2-3]_label "iout[1-2]" curr[2-3]_input Measured output current curr[2-3]_max Output current max value curr[2-3]_max_alarm Output current max alarm

fan[1-2]_input Fan 1 and 2 speed in RPM fan1_target Set fan speed reference for both fans

in1_label "vin" in1_input Measured input voltage in1_crit Input voltage critical max value in1_crit_alarm Input voltage critical max alarm in1_lcrit Input voltage critical min value in1_lcrit_alarm Input voltage critical min alarm in1_max Input voltage max value in1_max_alarm Input voltage max alarm

in2_label "vcap" in2_input Hold up capacitor voltage

in[3-8]_label "vout[1-3,5-7]" in[3-8]_input Measured output voltage in[3-4]_alarm vout[1-2] output voltage alarm

power[1-2]_label "pin[1-2]" power[1-2]_input Measured input power power[1-2]_alarm Input power high alarm

power[3-4]_label "pout[1-2]" power[3-4]_input Measured output power

temp[1-3]_input Measured temperature temp[1-3]_alarm Temperature alarm ======================= =======================================================

.. note::

- curr3, fan2, vout[2-7], vcap, pin2, pout2 and temp3 attributes only
  exist for PFE3000.