asus_ec_sensors.rst (1813B)
1.. SPDX-License-Identifier: GPL-2.0-or-later 2 3Kernel driver asus_ec_sensors 4================================= 5 6Supported boards: 7 * PRIME X470-PRO 8 * PRIME X570-PRO 9 * Pro WS X570-ACE 10 * ProArt X570-CREATOR WIFI 11 * ROG CROSSHAIR VIII DARK HERO 12 * ROG CROSSHAIR VIII HERO (WI-FI) 13 * ROG CROSSHAIR VIII FORMULA 14 * ROG CROSSHAIR VIII HERO 15 * ROG CROSSHAIR VIII IMPACT 16 * ROG STRIX B550-E GAMING 17 * ROG STRIX B550-I GAMING 18 * ROG STRIX X570-E GAMING 19 * ROG STRIX X570-E GAMING WIFI II 20 * ROG STRIX X570-F GAMING 21 * ROG STRIX X570-I GAMING 22 23Authors: 24 - Eugene Shalygin <eugene.shalygin@gmail.com> 25 26Description: 27------------ 28ASUS mainboards publish hardware monitoring information via Super I/O 29chip and the ACPI embedded controller (EC) registers. Some of the sensors 30are only available via the EC. 31 32The driver is aware of and reads the following sensors: 33 341. Chipset (PCH) temperature 352. CPU package temperature 363. Motherboard temperature 374. Readings from the T_Sensor header 385. VRM temperature 396. CPU_Opt fan RPM 407. VRM heatsink fan RPM 418. Chipset fan RPM 429. Readings from the "Water flow meter" header (RPM) 4310. Readings from the "Water In" and "Water Out" temperature headers 4411. CPU current 4512. CPU core voltage 46 47Sensor values are read from EC registers, and to avoid race with the board 48firmware the driver acquires ACPI mutex, the one used by the WMI when its 49methods access the EC. 50 51Module Parameters 52----------------- 53 * mutex_path: string 54 The driver holds path to the ACPI mutex for each board (actually, 55 the path is mostly identical for them). If ASUS changes this path 56 in a future BIOS update, this parameter can be used to override 57 the stored in the driver value until it gets updated. 58 A special string ":GLOBAL_LOCK" can be passed to use the ACPI 59 global lock instead of a dedicated mutex.