Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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968 B
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28 lines
968 B
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.. SPDX-License-Identifier: GPL-2.0-or-later
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Kernel driver qnap-mcu-hwmon
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============================
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This driver enables the use of the hardware monitoring and fan control
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of the MCU used on some QNAP network attached storage devices.
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Author: Heiko Stuebner <heiko@sntech.de>
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Description
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-----------
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The driver implements a simple interface for driving the fan controlled by
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setting its PWM output value and exposes the fan rpm and case-temperature
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to user space through hwmon's sysfs interface.
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The fan rotation speed returned via the optional 'fan1_input' is calculated
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inside the MCU device.
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The driver provides the following sensor accesses in sysfs:
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=============== ======= =======================================================
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fan1_input ro fan tachometer speed in RPM
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pwm1 rw relative speed (0-255), 255=max. speed.
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temp1_input ro Measured temperature in millicelsius
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=============== ======= =======================================================
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