NAME

gscpcib — National Semiconductor Geode SC1100 PCI-ISA bridge with GPIO

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 OpenBSD 3.6 and NetBSD 4.0.

AUTHORS

The gscpcib driver was written by Alexander Yurchenko <grange@openbsd.org> and was ported to NetBSD by Jared D. McNeill <jmcneill@NetBSD.org>.