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ioapic(4/amd64) I/O Advanced Programmable Interrupt Controller
ioapic(4/i386) I/O Advanced Programmable Interrupt Controller

IOAPIC(4) Device Drivers Manual (amd64) IOAPIC(4)

NAME

ioapicI/O Advanced Programmable Interrupt Controller

SYNOPSIS

ioapic0 at mainbus0

DESCRIPTION

ioapic is an I/O Advanced Programmable Interrupt Controller (APIC). It provides interrupt management for systems with multiple I/O subsystems and can distribute interrupts across multiple processors.

SEE ALSO

intro(4)

STANDARDS

ioapic is based on Intel's 82093AA I/O Advanced Programmable Interrupt Controller (I/O APIC) specification.

HISTORY

The ioapic driver first appeared in OpenBSD 3.5.

AUTHORS

The ioapic driver was written by Bill Sommerfield.
May 31, 2007 OpenBSD-current