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cubelinux-kernel/Documentation/hwmon/ibm-cffps.rst
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Greg Kroah-Hartman 598cf27219 Linux 6.19.3
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Luna Jernberg <droidbittin@gmail.com>
Tested-by: Ronald Warsow <rwarsow@gmx.de>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-19 16:33:27 +01:00

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Kernel driver ibm-cffps
=======================
Supported chips:
* IBM Common Form Factor power supply
Author: Eddie James <eajames@us.ibm.com>
Description
-----------
This driver supports IBM Common Form Factor (CFF) power supplies. This driver
is a client to the core PMBus driver.
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.
Sysfs entries
-------------
The following attributes are supported:
======================= ======================================================
curr1_alarm Output current over-current alarm.
curr1_input Measured output current in mA.
curr1_label "iout1"
fan1_alarm Fan 1 warning.
fan1_fault Fan 1 fault.
fan1_input Fan 1 speed in RPM.
fan2_alarm Fan 2 warning.
fan2_fault Fan 2 fault.
fan2_input Fan 2 speed in RPM.
in1_alarm Input voltage under-voltage alarm.
in1_input Measured input voltage in mV.
in1_label "vin"
in2_alarm Output voltage over-voltage alarm.
in2_input Measured output voltage in mV.
in2_label "vout1"
power1_alarm Input fault or alarm.
power1_input Measured input power in uW.
power1_label "pin"
temp1_alarm PSU inlet ambient temperature over-temperature alarm.
temp1_input Measured PSU inlet ambient temp in millidegrees C.
temp2_alarm Secondary rectifier temp over-temperature alarm.
temp2_input Measured secondary rectifier temp in millidegrees C.
temp3_alarm ORing FET temperature over-temperature alarm.
temp3_input Measured ORing FET temperature in millidegrees C.
======================= ======================================================