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share/man/man4/it8613hwm.4
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| .\" | |||||
| .\" SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
| .\" | |||||
| .\" Copyright (c) 2022 Johannes Totz | |||||
| .\" | |||||
| .\" Redistribution and use in source and binary forms, with or without | |||||
| .\" modification, are permitted provided that the following conditions | |||||
| .\" are met: | |||||
| .\" 1. Redistributions of source code must retain the above copyright | |||||
| .\" notice, this list of conditions and the following disclaimer. | |||||
| .\" 2. Redistributions in binary form must reproduce the above copyright | |||||
| .\" notice, this list of conditions and the following disclaimer in the | |||||
| .\" documentation and/or other materials provided with the distribution. | |||||
| .\" | |||||
| .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
| .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
| .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
| .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
| .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
| .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
| .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
| .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
| .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
| .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
| .\" SUCH DAMAGE. | |||||
| .\" | |||||
| .\" $FreeBSD$ | |||||
| .\" | |||||
| .Dd September 8, 2022 | |||||
| .Dt IT8613HWM 4 | |||||
| .Os | |||||
| .Sh NAME | |||||
| .Nm it8613hwm | |||||
| .Nd device driver for the ITE IT8613E Super I/O hardware monitor | |||||
| .Sh SYNOPSIS | |||||
| To compile this driver into the kernel, place the following lines in your | |||||
| kernel configuration file: | |||||
| .Bd -ragged -offset indent | |||||
| .Cd "device superio" | |||||
| .Cd "device it8613hwm" | |||||
| .Ed | |||||
| .Pp | |||||
| Alternatively, to load the driver as a module at boot time, place the following | |||||
| line in | |||||
| .Xr loader.conf 5 : | |||||
| .Bd -literal -offset indent | |||||
| it8613hwm_load="YES" | |||||
| .Ed | |||||
| .Sh DESCRIPTION | |||||
| The | |||||
| .Nm | |||||
| driver supports reading the temperature sensor and fan speed from the hardware | |||||
| monitor present in the IT8613E Super I/O chip. | |||||
| There are 3 temperature sensor channels but not all may be connected on the | |||||
| mainboard. These are reported through a sysctl node named | |||||
| .Va dev.it8613hwm.0.temperature%d , | |||||
| where %d goes from 0 to 2 inclusive. | |||||
| There are also 3 fan speed channels, again not all of those may be connected on | |||||
| the mainboard, reported in units of RPM via | |||||
| .Va dev.it8613hwm.0.fan%d . | |||||
| .Sh EXAMPLES | |||||
| To get the current values for all temperature sensors and fans: | |||||
| .Pp | |||||
| .Dl "$ sysctl dev.it8613hwm" | |||||
| .Dl "dev.it8613hwm.0.fan2: 1470" | |||||
| .Dl "dev.it8613hwm.0.fan1: 648" | |||||
| .Dl "dev.it8613hwm.0.fan0: 0" | |||||
| .Dl "dev.it8613hwm.0.temperature2: 35C" | |||||
| .Dl "dev.it8613hwm.0.temperature1: 40C" | |||||
| .Dl "dev.it8613hwm.0.temperature0: 49C" | |||||
| .Pp | |||||
| As can be seen in this example, there is no fan connected to fan0. | |||||
| .Sh SEE ALSO | |||||
| .Xr superio 4 , | |||||
| .Xr sysctl 8 | |||||
| .Sh AUTHORS | |||||
| .An -nosplit | |||||
| The driver and manual page was written by | |||||
| .An Johannes Totz . | |||||
| .Sh BUGS | |||||
| No public datasheet is available for this chip. The information to write this | |||||
| driver was obtained through trial-and-error and datasheets for similar (but | |||||
| ultimately different) chips. | |||||