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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.