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-rw-r--r--Documentation/hwmon/aquacomputer_d5next.rst61
-rw-r--r--Documentation/hwmon/index.rst1
2 files changed, 62 insertions, 0 deletions
diff --git a/Documentation/hwmon/aquacomputer_d5next.rst b/Documentation/hwmon/aquacomputer_d5next.rst
new file mode 100644
index 000000000000..1f4bb4ba2e4b
--- /dev/null
+++ b/Documentation/hwmon/aquacomputer_d5next.rst
@@ -0,0 +1,61 @@
+.. 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
+================ ===============================================
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
index 470f2c50ecc2..f790f1260c33 100644
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -39,6 +39,7 @@ Hardware Monitoring Kernel Drivers
adt7475
aht10
amc6821
+ aquacomputer_d5next
asb100
asc7621
aspeed-pwm-tacho