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![Eugene Shalygin](/assets/img/avatar_default.png)
A user discovered [1] the CPU Core voltage sensor, which spans 2 registers and provides output in mV. Althroug the discovery was made with a X470 chipset, the sensor is present in X570 (tested with C8H). For now simply add it to each board with the CPU current sensor present. [1] https://github.com/zeule/asus-ec-sensors/issues/12 Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com> Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name> Tested-by: Denis Pauk <pauk.denis@gmail.com> Link: https://lore.kernel.org/r/20220208094244.1106312-1-eugene.shalygin@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
54 lines
1.6 KiB
ReStructuredText
54 lines
1.6 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0-or-later
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Kernel driver asus_ec_sensors
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=================================
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Supported boards:
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* PRIME X570-PRO,
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* Pro WS X570-ACE,
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* ROG CROSSHAIR VIII DARK HERO,
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* ROG CROSSHAIR VIII HERO (WI-FI)
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* ROG CROSSHAIR VIII FORMULA,
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* ROG CROSSHAIR VIII HERO,
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* ROG CROSSHAIR VIII IMPACT,
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* ROG STRIX B550-E GAMING,
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* ROG STRIX B550-I GAMING,
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* ROG STRIX X570-E GAMING,
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* ROG STRIX X570-F GAMING,
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* ROG STRIX X570-I GAMING
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Authors:
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- Eugene Shalygin <eugene.shalygin@gmail.com>
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Description:
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------------
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ASUS mainboards publish hardware monitoring information via Super I/O
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chip and the ACPI embedded controller (EC) registers. Some of the sensors
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are only available via the EC.
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The driver is aware of and reads the following sensors:
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1. Chipset (PCH) temperature
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2. CPU package temperature
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3. Motherboard temperature
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4. Readings from the T_Sensor header
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5. VRM temperature
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6. CPU_Opt fan RPM
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7. VRM heatsink fan RPM
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8. Chipset fan RPM
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9. Readings from the "Water flow meter" header (RPM)
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10. Readings from the "Water In" and "Water Out" temperature headers
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11. CPU current
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12. CPU core voltage
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Sensor values are read from EC registers, and to avoid race with the board
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firmware the driver acquires ACPI mutex, the one used by the WMI when its
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methods access the EC.
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Module Parameters
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-----------------
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* mutex_path: string
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The driver holds path to the ACPI mutex for each board (actually,
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the path is mostly identical for them). If ASUS changes this path
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in a future BIOS update, this parameter can be used to override
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the stored in the driver value until it gets updated.
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