102 lines
3.2 KiB
ReStructuredText
102 lines
3.2 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0-or-later
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Kernel driver corsair-psu
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=========================
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Supported devices:
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* Corsair Power Supplies
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Corsair HX550i
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Corsair HX650i
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Corsair HX750i
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Corsair HX850i
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Corsair HX1000i (Series 2022 and 2023)
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Corsair HX1200i
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Corsair HX1500i (Series 2022 and 2023)
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Corsair RM550i
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Corsair RM650i
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Corsair RM750i
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Corsair RM850i
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Corsair RM1000i
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Author: Wilken Gottwalt
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Description
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-----------
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This driver implements the sysfs interface for the Corsair PSUs with a HID protocol
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interface of the HXi and RMi series.
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These power supplies provide access to a micro-controller with 2 attached
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temperature sensors, 1 fan rpm sensor, 4 sensors for volt levels, 4 sensors for
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power usage and 4 sensors for current levels and additional non-sensor information
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like uptimes.
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Sysfs entries
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-------------
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======================= ========================================================
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curr1_input Total current usage
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curr2_input Current on the 12v psu rail
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curr2_crit Current max critical value on the 12v psu rail
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curr3_input Current on the 5v psu rail
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curr3_crit Current max critical value on the 5v psu rail
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curr4_input Current on the 3.3v psu rail
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curr4_crit Current max critical value on the 3.3v psu rail
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fan1_input RPM of psu fan
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in0_input Voltage of the psu ac input
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in1_input Voltage of the 12v psu rail
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in1_crit Voltage max critical value on the 12v psu rail
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in1_lcrit Voltage min critical value on the 12v psu rail
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in2_input Voltage of the 5v psu rail
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in2_crit Voltage max critical value on the 5v psu rail
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in2_lcrit Voltage min critical value on the 5v psu rail
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in3_input Voltage of the 3.3v psu rail
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in3_crit Voltage max critical value on the 3.3v psu rail
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in3_lcrit Voltage min critical value on the 3.3v psu rail
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power1_input Total power usage
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power2_input Power usage of the 12v psu rail
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power3_input Power usage of the 5v psu rail
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power4_input Power usage of the 3.3v psu rail
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pwm1 PWM value, read only
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pwm1_enable PWM mode, read only
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temp1_input Temperature of the psu vrm component
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temp1_crit Temperature max cirtical value of the psu vrm component
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temp2_input Temperature of the psu case
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temp2_crit Temperature max critical value of psu case
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======================= ========================================================
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Usage Notes
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-----------
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It is an USB HID device, so it is auto-detected, supports hot-swapping and
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several devices at once.
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Flickering values in the rail voltage levels can be an indicator for a failing
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PSU. Accordingly to the default automatic fan speed plan the fan starts at about
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30% of the wattage rating. If this does not happen, a fan failure is likely. The
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driver also provides some additional useful values via debugfs, which do not fit
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into the hwmon class.
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Debugfs entries
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---------------
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======================= ========================================================
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ocpmode Single or multi rail mode of the PCIe power connectors
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product Product name of the psu
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uptime Session uptime of the psu
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uptime_total Total uptime of the psu
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vendor Vendor name of the psu
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======================= ========================================================
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