1.\" $OpenBSD: viasio.4,v 1.6 2013/07/16 16:05:49 schwarze Exp $ 2.\" 3.\" Copyright (c) 2005 Alexander Yurchenko <grange@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: July 16 2013 $ 18.Dt VIASIO 4 19.Os 20.Sh NAME 21.Nm viasio 22.Nd VIA VT1211 LPC Super I/O 23.Sh SYNOPSIS 24.Cd "viasio* at isa? port 0x2e flags 0x0000" 25.Cd "viasio* at isa? port 0x4e flags 0x0000" 26.Sh DESCRIPTION 27The 28.Nm 29driver provides support for the VIA VT1211 LPC Super I/O IC. 30The hardware monitoring and watchdog timer functions are currently 31supported. 32.Pp 33The hardware monitor provides hardware monitoring capabilities 34to be used with the 35.Xr sysctl 8 36interface. 37The following monitoring sensors are available: 38.Bl -column "Sensor" "UnitsXXXXX" "Typical" -offset indent 39.It Sy "Sensor" Ta Sy "Units" Ta Sy "Typical use" 40.It Li "TEMP1" Ta "uK" Ta "Pentium II type thermal diode" 41.It Li "UCH1" Ta "uK or uV DC" Ta "CPU temperature" 42.It Li "UCH2" Ta "uK or uV DC" Ta "System temperature" 43.It Li "UCH3" Ta "uK or uV DC" Ta "CPU core voltage" 44.It Li "UCH4" Ta "uK or uV DC" Ta "+5V" 45.It Li "UCH5" Ta "uK or uV DC" Ta "+12V" 46.It Li "+3.3V" Ta "uV" Ta "Internal +3.3V" 47.It Li "FAN1" Ta "RPM" Ta "Fan tachometer" 48.It Li "FAN2" Ta "RPM" Ta "Fan tachometer" 49.El 50.Pp 51If the hardware monitor is not enabled by firmware, the driver can try 52to enable it if value 0x0001 is present in the 53.Ar flags . 54Note that enabling the hardware monitor can lead to unexpected results. 55.Pp 56The watchdog timer provides a standard 57.Xr watchdog 4 58interface. 59If the watchdog timer is not enabled by firmware, the driver can try 60to enable it if value 0x0002 is present in the 61.Ar flags . 62.Sh SEE ALSO 63.Xr intro 4 , 64.Xr isa 4 , 65.Xr watchdog 4 , 66.Xr sensorsd 8 , 67.Xr sysctl 8 68.Sh HISTORY 69The 70.Nm 71driver first appeared in 72.Ox 3.8 . 73.Sh AUTHORS 74The 75.Nm 76driver was written by 77.An Alexander Yurchenko Aq Mt grange@openbsd.org . 78