1.\" $OpenBSD: it.4,v 1.25 2015/09/10 15:16:43 schwarze Exp $ 2.\" 3.\" Copyright (c) 2007-2008 Oleg Safiullin <form@pdp-11.org.ru> 4.\" Copyright (c) 2003 Julien Bordet <zejames@greygats.org> 5.\" All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26.\" 27.Dd $Mdocdate: September 10 2015 $ 28.Dt IT 4 29.Os 30.Sh NAME 31.Nm it 32.Nd ITE IT87xxF and SiS SiS950 temperature, voltage, and fan sensor with \ 33watchdog timer 34.Sh SYNOPSIS 35.Cd "it* at isa? port 0x2e" 36.Cd "it* at isa? port 0x4e" 37.Sh DESCRIPTION 38The 39.Nm 40driver provides support for the 41ITE IT8705F, IT8712F, IT8716F, IT8718F, IT8720F, IT8726F, IT8728F, IT8772F 42and SiS SiS950 43hardware monitors and 44.Xr watchdog 4 45timer to be used with the 46.Xr sysctl 8 47interface. 48.Pp 49Most supported devices possess 17 sensors: 50.Bl -column "Sensor" "Units" "Typical" -offset indent 51.It Sy "Sensor" Ta Sy "Units" Ta Sy "Typical Use" 52.It Li "temp0" Ta "uK" Ta "CPU Temperature" 53.It Li "temp1" Ta "uK" Ta "Motherboard Temperature" 54.It Li "temp2" Ta "uK" Ta "Unused" 55.It Li "fan0" Ta "RPM" Ta "CPU Fan" 56.It Li "fan1" Ta "RPM" Ta "Chassis Fan" 57.It Li "fan2" Ta "RPM" Ta "Power Fan" 58.It Li "fan3" Ta "RPM" Ta "Unused" 59.It Li "fan4" Ta "RPM" Ta "Unused" 60.It Li "volt0" Ta "uV DC" Ta "Core voltage" 61.It Li "volt1" Ta "uV DC" Ta "Core voltage" 62.It Li "volt2" Ta "uV DC" Ta "+3.3V" 63.It Li "volt3" Ta "uV DC" Ta "+5V" 64.It Li "volt4" Ta "uV DC" Ta "+12V" 65.It Li "volt5" Ta "uV DC" Ta "-12V" 66.It Li "volt6" Ta "uV DC" Ta "-5V" 67.It Li "volt7" Ta "uV DC" Ta "+5VSB" 68.It Li "volt8" Ta "uV DC" Ta "VBAT" 69.El 70.Sh SEE ALSO 71.Xr isa 4 , 72.Xr watchdog 4 , 73.Xr sensorsd 8 , 74.Xr sysctl 8 , 75.Xr watchdogd 8 76.Sh HISTORY 77The 78.Nm 79driver first appeared in 80.Ox 3.4 . 81.Sh AUTHORS 82.An -nosplit 83The 84.Nm 85driver was originally written for 86.Ox 3.4 87by 88.An Julien Bordet Aq Mt zejames@greyhats.org , 89and completely rewritten for 90.Ox 4.3 91by 92.An Oleg Safiullin Aq Mt form@pdp-11.org.ru . 93.Sh BUGS 94Watchdog timer functionality is not supported for ITE IT8705 95or SiS SiS950 chips. 96For older IT8712 chips, 97watchdog timeout values of more than 255 seconds 98are rounded up to the nearest minute. 99