Copyright (c) 2002 Nicolas Souchu
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$FreeBSD$
.Dd April 20, 2002 .Dt VIAPM 4 .Os .Sh NAME .Nm viapm .Nd VIA chipsets Power Management controller driver .Sh SYNOPSIS .Cd device iicbb .Cd device iicbus .Cd device iicsmb .Cd device smbus .Cd device smb .Cd device viapm .Sh DESCRIPTION This driver provides access to the .Tn "VIA chipset Power Management Unit" family. They are VT82C586B, VT82C596A, VT82C596B, VT82C686A and VT8233.
All rights reserved.
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 April 20, 2002 .Dt VIAPM 4 .Os .Sh NAME .Nm viapm .Nd VIA chipsets Power Management controller driver .Sh SYNOPSIS .Cd device iicbb .Cd device iicbus .Cd device iicsmb .Cd device smbus .Cd device smb .Cd device viapm .Sh DESCRIPTION This driver provides access to the .Tn "VIA chipset Power Management Unit" family. They are VT82C586B, VT82C596A, VT82C596B, VT82C686A and VT8233.
p The embedded controller of the VIA chipset may give you access to the monitoring facilities of your mainboard.
p The 586B support is made by software whereas other controllers support the SMBus protocol by hardware. See .Xr smb 4 for writing user code to fetch voltages, temperature and so on from the monitoring chip of your mainboard. .Sh SEE ALSO .Xr iicbb 4 , .Xr iicbus 4 , .Xr iicsmb 4 , .Xr smb 4 , .Xr smbus 4 .Sh HISTORY The .Nm manual page first appeared in .Fx 4.5 . .Sh AUTHORS This manual page was written by .An Nicolas Souchu Aq Mt nsouch@FreeBSD.org . .Sh BUGS Only polling mode is supported.