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NAME

     intpm - Intel PIIX4 Power Management controller driver

SYNOPSIS

     device smbus
     device smb
     device intpm

DESCRIPTION

     This driver provides access to Intel PIIX4 PCI Controller function 3,
     Power management controller.  Currently, only smbus controller function
     is implemented.  But it also have bus idle monitoring function.  It will
     display mapped I/O address for bus monitoring function when attaching.

SEE ALSO

     smb(4), smbus(4)

HISTORY

     The intpm driver first appeared in FreeBSD 3.4.

AUTHORS

     This manual page was written by Takanori Watanabe
     〈takawata@shidahara1.planet.sci.kobe-u.ac.jp〉.

BUGS

     This device requires IRQ 9 exclusively.  To use this, you should enable
     ACPI function in BIOS configuration, or PnP mechanism assigns conflicted
     IRQ for PnP ISA card.  And do not use IRQ 9 for Non-PnP ISA cards.