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SPDX-License-Identifier: GPL-2.0-or-later 2 3 Kernel driver aquacomputer-d5next 4 ================================= 5 6 Supported devices: 7 8 * Aquacomputer Aquaero 5/6 fan controllers 9 * Aquacomputer D5 Next watercooling pump 10 * Aquacomputer Farbwerk RGB controller 11 * Aquacomputer Farbwerk 360 RGB controller 12 * Aquacomputer Octo fan controller 13 * Aquacomputer Quadro fan controller 14 * Aquacomputer High Flow Next sensor 15 * Aquacomputer Leakshield leak prevention system 16 * Aquacomputer Aquastream XT watercooling pump 17 * Aquacomputer Aquastream Ultimate watercooling pump 18 * Aquacomputer Poweradjust 3 fan controller 19 * Aquacomputer High Flow USB flow meter 20 * Aquacomputer MPS Flow devices 21 22 Author: Aleksa Savic 23 24 Description 25 ----------- 26 27 This driver exposes hardware sensors of listed Aquacomputer devices, which 28 communicate through proprietary USB HID protocols. 29 30 The Aquaero devices expose eight physical, eight virtual and four calculated 31 virtual temperature sensors, as well as two flow sensors. The fans expose their 32 speed (in RPM), power, voltage and current. Temperature offsets and fan speeds 33 can be controlled. 34 35 For the D5 Next pump, available sensors are pump and fan speed, power, voltage 36 and current, as well as coolant temperature and eight virtual temp sensors. Also 37 available through debugfs are the serial number, firmware version and power-on 38 count. Attaching a fan to it is optional and allows it to be controlled using 39 temperature curves directly from the pump. If it's not connected, the fan-related 40 sensors will report zeroes. 41 42 The pump can be configured either through software or via its physical 43 interface. Configuring the pump through this driver is not implemented, as it 44 seems to require sending it a complete configuration. That includes addressable 45 RGB LEDs, for which there is no standard sysfs interface. Thus, that task is 46 better suited for userspace tools. 47 48 The Octo exposes four physical and sixteen virtual temperature sensors, a flow sensor 49 as well as eight PWM controllable fans, along with their speed (in RPM), power, voltage 50 and current. Flow sensor pulses are also available. 51 52 The Quadro exposes four physical and sixteen virtual temperature sensors, a flow 53 sensor and four PWM controllable fans, along with their speed (in RPM), power, 54 voltage and current. Flow sensor pulses are also available. 55 56 The Farbwerk and Farbwerk 360 expose four temperature sensors. Additionally, 57 sixteen virtual temperature sensors of the Farbwerk 360 are exposed. 58 59 The High Flow Next exposes +5V voltages, water quality, conductivity and flow readings. 60 A temperature sensor can be connected to it, in which case it provides its reading 61 and an estimation of the dissipated/absorbed power in the liquid cooling loop. 62 63 The Leakshield exposes two temperature sensors and coolant pressure (current, min, max and 64 target readings). It also exposes the estimated reservoir volume and how much of it is 65 filled with coolant. Pump RPM and flow can be set to enhance on-device calculations, 66 but this is not yet implemented here. 67 68 The Aquastream XT pump exposes temperature readings for the coolant, external sensor 69 and fan IC. It also exposes pump and fan speeds (in RPM), voltages, as well as pump 70 current. 71 72 The Aquastream Ultimate pump exposes coolant temp and an external temp sensor, along 73 with speed, power, voltage and current of both the pump and optionally connected fan. 74 It also exposes pressure and flow speed readings. 75 76 The Poweradjust 3 controller exposes a single external temperature sensor. 77 78 The High Flow USB exposes an internal and external temperature sensor, and a flow meter. 79 80 The MPS Flow devices expose the same entries as the High Flow USB because they have 81 the same USB product ID and report sensors equivalently. 82 83 Depending on the device, not all sysfs and debugfs entries will be available. 84 Writing to virtual temperature sensors is not currently supported. 85 86 Usage notes 87 ----------- 88 89 The devices communicate via HID reports. The driver is loaded automatically by 90 the kernel and supports hotswapping. 91 92 Sysfs entries 93 ------------- 94 95 ================ ============================================================== 96 temp[1-20]_input Physical/virtual temperature sensors (in millidegrees Celsius) 97 temp[1-8]_offset Temperature sensor correction offset (in millidegrees Celsius) 98 fan[1-9]_input Pump/fan speed (in RPM) / Flow speed (in dL/h) 99 fan1_min Minimal fan speed (in RPM) 100 fan1_max Maximal fan speed (in RPM) 101 fan1_target Target fan speed (in RPM) 102 fan5_pulses Quadro flow sensor pulses 103 fan9_pulses Octo flow sensor pulses 104 power[1-8]_input Pump/fan power (in micro Watts) 105 in[0-7]_input Pump/fan voltage (in milli Volts) 106 curr[1-8]_input Pump/fan current (in milli Amperes) 107 pwm[1-8] Fan PWM (0 - 255) 108 ================ ============================================================== 109 110 Debugfs entries 111 --------------- 112 113 ================ ================================================= 114 serial_number Serial number of the device 115 firmware_version Version of installed firmware 116 power_cycles Count of how many times the device was powered on 117 ================ =================================================
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