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1.. SPDX-License-Identifier: GPL-2.0-or-later2 3Kernel driver nzxt-kraken24==========================5 6Supported devices:7 8* NZXT Kraken X429* NZXT Kraken X5210* NZXT Kraken X6211* NZXT Kraken X7212 13Author: Jonas Malaco14 15Description16-----------17 18This driver enables hardware monitoring support for NZXT Kraken X42/X52/X62/X7219all-in-one CPU liquid coolers. Three sensors are available: fan speed, pump20speed and coolant temperature.21 22Fan and pump control, while supported by the firmware, are not currently23exposed. The addressable RGB LEDs, present in the integrated CPU water block24and pump head, are not supported either. But both features can be found in25existing user-space tools (e.g. `liquidctl`_).26 27.. _liquidctl: https://github.com/liquidctl/liquidctl28 29Usage Notes30-----------31 32As these are USB HIDs, the driver can be loaded automatically by the kernel and33supports hot swapping.34 35Sysfs entries36-------------37 38======================= ========================================================39fan1_input Fan speed (in rpm)40fan2_input Pump speed (in rpm)41temp1_input Coolant temperature (in millidegrees Celsius)42======================= ========================================================43