1d115b51eSWilken Gottwalt.. SPDX-License-Identifier: GPL-2.0-or-later 2d115b51eSWilken Gottwalt 3d115b51eSWilken GottwaltKernel driver corsair-psu 4d115b51eSWilken Gottwalt========================= 5d115b51eSWilken Gottwalt 6d115b51eSWilken GottwaltSupported devices: 7d115b51eSWilken Gottwalt 8d115b51eSWilken Gottwalt* Corsair Power Supplies 9d115b51eSWilken Gottwalt 10d115b51eSWilken Gottwalt Corsair HX550i 11d115b51eSWilken Gottwalt 12d115b51eSWilken Gottwalt Corsair HX650i 13d115b51eSWilken Gottwalt 14d115b51eSWilken Gottwalt Corsair HX750i 15d115b51eSWilken Gottwalt 16d115b51eSWilken Gottwalt Corsair HX850i 17d115b51eSWilken Gottwalt 18*b9c15c96SWilken Gottwalt Corsair HX1000i (Legacy and Series 2023) 19d115b51eSWilken Gottwalt 20*b9c15c96SWilken Gottwalt Corsair HX1200i (Legacy and Series 2023) 21d115b51eSWilken Gottwalt 22*b9c15c96SWilken Gottwalt Corsair HX1500i (Legacy and Series 2023) 235619c660SWilken Gottwalt 24d115b51eSWilken Gottwalt Corsair RM550i 25d115b51eSWilken Gottwalt 26d115b51eSWilken Gottwalt Corsair RM650i 27d115b51eSWilken Gottwalt 28d115b51eSWilken Gottwalt Corsair RM750i 29d115b51eSWilken Gottwalt 30d115b51eSWilken Gottwalt Corsair RM850i 31d115b51eSWilken Gottwalt 32d115b51eSWilken Gottwalt Corsair RM1000i 33d115b51eSWilken Gottwalt 34d115b51eSWilken GottwaltAuthor: Wilken Gottwalt 35d115b51eSWilken Gottwalt 36d115b51eSWilken GottwaltDescription 37d115b51eSWilken Gottwalt----------- 38d115b51eSWilken Gottwalt 39d115b51eSWilken GottwaltThis driver implements the sysfs interface for the Corsair PSUs with a HID protocol 40d115b51eSWilken Gottwaltinterface of the HXi and RMi series. 41d115b51eSWilken GottwaltThese power supplies provide access to a micro-controller with 2 attached 42d115b51eSWilken Gottwalttemperature sensors, 1 fan rpm sensor, 4 sensors for volt levels, 4 sensors for 4312087a36SRandy Dunlappower usage and 4 sensors for current levels and additional non-sensor information 44d115b51eSWilken Gottwaltlike uptimes. 45d115b51eSWilken Gottwalt 46d115b51eSWilken GottwaltSysfs entries 47d115b51eSWilken Gottwalt------------- 48d115b51eSWilken Gottwalt 49d115b51eSWilken Gottwalt======================= ======================================================== 50d115b51eSWilken Gottwaltcurr1_input Total current usage 51d115b51eSWilken Gottwaltcurr2_input Current on the 12v psu rail 52c2d5f273SWilken Gottwaltcurr2_crit Current max critical value on the 12v psu rail 53d115b51eSWilken Gottwaltcurr3_input Current on the 5v psu rail 54c2d5f273SWilken Gottwaltcurr3_crit Current max critical value on the 5v psu rail 55d115b51eSWilken Gottwaltcurr4_input Current on the 3.3v psu rail 56c2d5f273SWilken Gottwaltcurr4_crit Current max critical value on the 3.3v psu rail 57d115b51eSWilken Gottwaltfan1_input RPM of psu fan 58d115b51eSWilken Gottwaltin0_input Voltage of the psu ac input 59d115b51eSWilken Gottwaltin1_input Voltage of the 12v psu rail 60c2d5f273SWilken Gottwaltin1_crit Voltage max critical value on the 12v psu rail 61c2d5f273SWilken Gottwaltin1_lcrit Voltage min critical value on the 12v psu rail 62d115b51eSWilken Gottwaltin2_input Voltage of the 5v psu rail 63c2d5f273SWilken Gottwaltin2_crit Voltage max critical value on the 5v psu rail 64c2d5f273SWilken Gottwaltin2_lcrit Voltage min critical value on the 5v psu rail 65c2d5f273SWilken Gottwaltin3_input Voltage of the 3.3v psu rail 66c2d5f273SWilken Gottwaltin3_crit Voltage max critical value on the 3.3v psu rail 67c2d5f273SWilken Gottwaltin3_lcrit Voltage min critical value on the 3.3v psu rail 68d115b51eSWilken Gottwaltpower1_input Total power usage 69d115b51eSWilken Gottwaltpower2_input Power usage of the 12v psu rail 70d115b51eSWilken Gottwaltpower3_input Power usage of the 5v psu rail 71d115b51eSWilken Gottwaltpower4_input Power usage of the 3.3v psu rail 720d67bbc4SWilken Gottwaltpwm1 PWM value, read only 730d67bbc4SWilken Gottwaltpwm1_enable PWM mode, read only 74d115b51eSWilken Gottwalttemp1_input Temperature of the psu vrm component 75c2d5f273SWilken Gottwalttemp1_crit Temperature max cirtical value of the psu vrm component 76d115b51eSWilken Gottwalttemp2_input Temperature of the psu case 77c2d5f273SWilken Gottwalttemp2_crit Temperature max critical value of psu case 78d115b51eSWilken Gottwalt======================= ======================================================== 79d115b51eSWilken Gottwalt 80d115b51eSWilken GottwaltUsage Notes 81d115b51eSWilken Gottwalt----------- 82d115b51eSWilken Gottwalt 83741ed085SWilken GottwaltIt is an USB HID device, so it is auto-detected, supports hot-swapping and 84741ed085SWilken Gottwaltseveral devices at once. 85d115b51eSWilken Gottwalt 86d115b51eSWilken GottwaltFlickering values in the rail voltage levels can be an indicator for a failing 87741ed085SWilken GottwaltPSU. Accordingly to the default automatic fan speed plan the fan starts at about 88741ed085SWilken Gottwalt30% of the wattage rating. If this does not happen, a fan failure is likely. The 89741ed085SWilken Gottwaltdriver also provides some additional useful values via debugfs, which do not fit 90741ed085SWilken Gottwaltinto the hwmon class. 91d115b51eSWilken Gottwalt 92d115b51eSWilken GottwaltDebugfs entries 93d115b51eSWilken Gottwalt--------------- 94d115b51eSWilken Gottwalt 95d115b51eSWilken Gottwalt======================= ======================================================== 96eb12f548SWilken Gottwaltocpmode Single or multi rail mode of the PCIe power connectors 97eb12f548SWilken Gottwaltproduct Product name of the psu 98eb12f548SWilken Gottwaltuptime Session uptime of the psu 99d115b51eSWilken Gottwaltuptime_total Total uptime of the psu 100d115b51eSWilken Gottwaltvendor Vendor name of the psu 101d115b51eSWilken Gottwalt======================= ======================================================== 102