80 lines
3.1 KiB
ReStructuredText
80 lines
3.1 KiB
ReStructuredText
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.. SPDX-License-Identifier: GPL-2.0-or-later
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Kernel driver aquacomputer-d5next
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=================================
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Supported devices:
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* Aquacomputer D5 Next watercooling pump
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* Aquacomputer Farbwerk RGB controller
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* Aquacomputer Farbwerk 360 RGB controller
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* Aquacomputer Octo fan controller
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* Aquacomputer Quadro fan controller
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* Aquacomputer High Flow Next sensor
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Author: Aleksa Savic
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Description
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-----------
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This driver exposes hardware sensors of listed Aquacomputer devices, which
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communicate through proprietary USB HID protocols.
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For the D5 Next pump, available sensors are pump and fan speed, power, voltage
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and current, as well as coolant temperature and eight virtual temp sensors. Also
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available through debugfs are the serial number, firmware version and power-on
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count. Attaching a fan to it is optional and allows it to be controlled using
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temperature curves directly from the pump. If it's not connected, the fan-related
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sensors will report zeroes.
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The pump can be configured either through software or via its physical
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interface. Configuring the pump through this driver is not implemented, as it
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seems to require sending it a complete configuration. That includes addressable
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RGB LEDs, for which there is no standard sysfs interface. Thus, that task is
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better suited for userspace tools.
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The Octo exposes four physical and sixteen virtual temperature sensors, as well as
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eight PWM controllable fans, along with their speed (in RPM), power, voltage and
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current.
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The Quadro exposes four physical and sixteen virtual temperature sensors, a flow
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sensor and four PWM controllable fans, along with their speed (in RPM), power,
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voltage and current.
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The Farbwerk and Farbwerk 360 expose four temperature sensors. Additionally,
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sixteen virtual temperature sensors of the Farbwerk 360 are exposed.
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The High Flow Next exposes +5V voltages, water quality, conductivity and flow readings.
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A temperature sensor can be connected to it, in which case it provides its reading
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and an estimation of the dissipated/absorbed power in the liquid cooling loop.
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Depending on the device, not all sysfs and debugfs entries will be available.
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Writing to virtual temperature sensors is not currently supported.
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Usage notes
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-----------
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The devices communicate via HID reports. The driver is loaded automatically by
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the kernel and supports hotswapping.
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Sysfs entries
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-------------
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================ ==============================================================
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temp[1-20]_input Physical/virtual temperature sensors (in millidegrees Celsius)
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fan[1-8]_input Pump/fan speed (in RPM) / Flow speed (in dL/h)
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power[1-8]_input Pump/fan power (in micro Watts)
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in[0-7]_input Pump/fan voltage (in milli Volts)
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curr[1-8]_input Pump/fan current (in milli Amperes)
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pwm[1-8] Fan PWM (0 - 255)
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================ ==============================================================
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Debugfs entries
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---------------
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================ =================================================
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serial_number Serial number of the device
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firmware_version Version of installed firmware
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power_cycles Count of how many times the device was powered on
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================ =================================================
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