gscpcib
—
National Semiconductor Geode SC1100 PCI-ISA bridge with
GPIO
gscpcib* at pci?
isa* at gscpcib?
gpio* at gscpcib?
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.
The gscpcib
driver first appeared in
OpenBSD 3.6 and NetBSD 4.0.