SSIO(4) | Device Drivers Manual (hppa) | 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.

July 15, 2007 | Debian