| .. SPDX-License-Identifier: GPL-2.0-or-later |
| |
| Kernel driver aquacomputer-d5next |
| ================================= |
| |
| Supported devices: |
| |
| * Aquacomputer D5 Next watercooling pump |
| |
| Author: Aleksa Savic |
| |
| Description |
| ----------- |
| |
| This driver exposes hardware sensors of the Aquacomputer D5 Next watercooling |
| pump, which communicates through a proprietary USB HID protocol. |
| |
| Available sensors are pump and fan speed, power, voltage and current, as |
| well as coolant temperature. Also available through debugfs are the serial |
| number, firmware version and power-on count. |
| |
| Attaching a fan 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. |
| |
| Usage notes |
| ----------- |
| |
| The pump communicates via HID reports. The driver is loaded automatically by |
| the kernel and supports hotswapping. |
| |
| Sysfs entries |
| ------------- |
| |
| ============ ============================================= |
| temp1_input Coolant temperature (in millidegrees Celsius) |
| fan1_input Pump speed (in RPM) |
| fan2_input Fan speed (in RPM) |
| power1_input Pump power (in micro Watts) |
| power2_input Fan power (in micro Watts) |
| in0_input Pump voltage (in milli Volts) |
| in1_input Fan voltage (in milli Volts) |
| in2_input +5V rail voltage (in milli Volts) |
| curr1_input Pump current (in milli Amperes) |
| curr2_input Fan current (in milli Amperes) |
| ============ ============================================= |
| |
| Debugfs entries |
| --------------- |
| |
| ================ =============================================== |
| serial_number Serial number of the pump |
| firmware_version Version of installed firmware |
| power_cycles Count of how many times the pump was powered on |
| ================ =============================================== |
