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NAME

     viapm — VIA chipsets Power Management controller driver

SYNOPSIS

     device iicbb
     device iicbus
     device iicsmb
     device smbus
     device smb
     device viapm

DESCRIPTION

     This driver provides access to the VIA chipset Power Management Unit family.  They are
     VT82C586B, VT82C596A, VT82C596B, VT82C686A and VT8233.

     The embedded controller of the VIA chipset may give you access to the monitoring facilities
     of your mainboard.

     The 586B support is made by software whereas other controllers support the SMBus protocol by
     hardware.  See smb(4) for writing user code to fetch voltages, temperature and so on from
     the monitoring chip of your mainboard.

SEE ALSO

     iicbb(4), iicbus(4), iicsmb(4), smb(4), smbus(4)

HISTORY

     The viapm manual page first appeared in FreeBSD 4.5.

AUTHORS

     This manual page was written by Nicolas Souchu <nsouch@FreeBSD.org>.

BUGS

     Only polling mode is supported.