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c2d5f273c5
Adds support for reading the critical values of the temperature sensors and the rail sensors (voltage and current) once and caches them. Updates the naming of the constants following a more clear scheme. Also updates the documentation and fixes some typos. Updates is_visible and ops_read functions to be more readable. The new sensors output of a Corsair HX850i will look like this: corsairpsu-hid-3-1 Adapter: HID adapter v_in: 230.00 V v_out +12v: 12.14 V (crit min = +8.41 V, crit max = +15.59 V) v_out +5v: 5.03 V (crit min = +3.50 V, crit max = +6.50 V) v_out +3.3v: 3.30 V (crit min = +2.31 V, crit max = +4.30 V) psu fan: 0 RPM vrm temp: +46.2°C (crit = +70.0°C) case temp: +39.8°C (crit = +70.0°C) power total: 152.00 W power +12v: 108.00 W power +5v: 41.00 W power +3.3v: 5.00 W curr +12v: 9.00 A (crit max = +85.00 A) curr +5v: 8.31 A (crit max = +40.00 A) curr +3.3v: 1.62 A (crit max = +40.00 A) Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net> Link: https://lore.kernel.org/r/YFNg6vGk3sQmyqgB@monster.powergraphx.local Signed-off-by: Guenter Roeck <linux@roeck-us.net>
93 lines
2.8 KiB
ReStructuredText
93 lines
2.8 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
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Corsair HX1200i
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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 addtional 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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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 and supports hot-swapping.
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Flickering values in the rail voltage levels can be an indicator for a failing
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PSU. The driver also provides some additional useful values via debugfs, which
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do not fit into the hwmon class.
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Debugfs entries
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---------------
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======================= ========================================================
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uptime Current 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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product Product name of the psu
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======================= ========================================================
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