| SSIO(4) | Kernel Interfaces 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).
NetBSD provides support for the following devices:
- 
com(4)
- 
serial communications interface
- 
lpt(4)
- 
parallel port driver
 
HISTORY
 The ssio driver appeared in OpenBSD 4.2. It was ported to NetBSD 6.0 by Nick Hudson.