SSIO(4)

NAME
ssio - National Semiconductor PC87560 Legacy IO

SYNOPSIS
ssio* at pci?

DESCRIPTION
The ssio driver provides support for the National Semiconductor PC87560 Legacy IO chip on systems with PA-8500 and later 64-bit CPUs. It configures the Programmable Interrupt Controllers integrated on the chip to route interrupts for the integrated ohci(4) USB controller (which appears as a separate PCI device).

OpenBSD provides support for the following devices:

com(4)
    serial communications interface
lpt(4)
    parallel port driver

SEE ALSO
intro(4), pci(4)

HISTORY
The ssio driver first appeared in OpenBSD 4.2.