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IOAPIC(4) Device Drivers Manual (i386) IOAPIC(4)

ioapicI/O Advanced Programmable Interrupt Controller

ioapic0 at mainbus0

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.

intro(4)

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

The ioapic driver first appeared in OpenBSD 3.5.

The ioapic driver was written by Bill Sommerfield.

May 31, 2007 OpenBSD-current