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.