NAME
gscpcib
- National Semiconductor Geode SC1100 PCI-ISA bridge
SYNOPSIS
gscpcib* at pci?
isa* at gscpcib?
gpio* at gscpcib?
DESCRIPTION
The
gscpcib
driver provides support for the National Semiconductor Geode SC1100
System-on-Chip
PCI-ISA
bridge.
This device is a
PCI-ISA
bridge, but with some additional sub-devices.
Besides the core
pcib(4)
functionality, the
gscpcib
driver provides support for the
GPIO
interface of this device.
The device has 64 I/O pins which can be accessed through the
gpio(4)
framework.
The
gpioctl(8)
program provides a convenient way to manipulate these pins from userland.
SEE ALSO
gpio(4),
intro(4),
isa(4),
pci(4),
pcib(4),
gpioctl(8)
HISTORY
The
gscpcib
driver first appeared in
OpenBSD3.6
and
NetBSD4.0.
AUTHORS
The
gscpcib
driver was written by
Alexander Yurchenko <grange@openbsd.org>
and was ported to
NetBSD
by
Jared D. McNeill <jmcneill@NetBSD.org>.