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