1.\" 2.Dd Apr 18, 2023 3.Dt NCTHWM 4 4.Os 5.Sh NAME 6.Nm ncthwm 7.Nd Hardware monitoring controller on Nuvoton Super I/Os 8.Sh SYNOPSIS 9.Cd "device ncthwm" 10.Cd "device superio" 11.Sh DESCRIPTION 12The 13.Nm 14is a driver for hardware monitoring controller that can be found in Nuvoton 15Super I/O chips. It expose fan speed via 16.Xr sysctl 8 . 17 18.Pp 19The 20.Nm 21driver supports the following chips: 22.Pp 23.Bl -bullet -compact 24.It 25Nuvoton NCT6779 26.It 27Nuvoton NCT6796D-E 28.El 29 30.Sh SYSCTL VARIABLES 31These variables are available as read-only 32.Xr sysctl 8 33variables: 34.Bl -tag -width indent 35.It Va dev.ncthwm.0.CPUFAN 36CPU fan speed in RPM. 37.It Va dev.ncthwm.0.SYSFAN 38System fan speed in RPM. 39.It Va dev.ncthwm.0.AUXFAN0 40AUX0 fan speed in RPM. 41.It Va dev.ncthwm.0.AUXFAN1 42AUX1 fan speed in RPM. 43.It Va dev.ncthwm.0.AUXFAN2 44AUX2 fan speed in RPM. 45.El 46 47.Sh HISTORY 48The driver first appeared in 49.Fx 14.0 . 50.Sh AUTHORS 51The driver was initially written by 52.An Stéphane Rochoy Aq Mt stephane.rochoy@stormshield.eu . 53