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