hwmon: Add driver for ASUS ROG RYUJIN II 360 AIO cooler

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This driver exposes hardware sensors of the ASUS ROG RYUJIN II 360
all-in-one CPU liquid cooler, which communicates through a proprietary
USB HID protocol. Report offsets were initially discovered in [1] by
Florian Freudiger.

Available sensors are pump, internal and external
(controller) fan speed in RPM, their duties in PWM, as well as
coolant temperature.

Attaching external fans to the controller is optional and allows them
to be controlled from the device. If not connected, the fan-related
sensors will report zeroes. The controller is a separate hardware unit
that comes bundled with the AIO and connects to it to allow fan control.

The addressable LCD screen is not supported in this
driver and should be controlled through userspace tools.

[1]: https://github.com/liquidctl/liquidctl/pull/653

Tested-by: Florian Freudiger <florian.freudiger@proton.me>
Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20240108094453.22986-1-savicaleksa83@gmail.com
[groeck: Add HID dependency]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

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This commit is contained in:

Aleksa Savic 2024-01-08 10:44:50 +01:00 • committed by Guenter Roeck

parent f3b4b146eb

commit ed3e03790c

6 changed files with 674 additions and 0 deletions

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47

Documentation/hwmon/asus_rog_ryujin.rst

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Documentation/hwmon/index.rst

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MAINTAINERS

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drivers/hwmon/Kconfig

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drivers/hwmon/Makefile

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609

drivers/hwmon/asus_rog_ryujin.c

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