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GSCPCIB(4) Device Drivers Manual (i386) GSCPCIB(4)

gscpcibNational 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 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.

gpio(4), intro(4), isa(4), pci(4), gpioctl(8)

The gscpcib driver first appeared in OpenBSD 3.6.

The gscpcib driver was written by Alexander Yurchenko ⟨⟩.

November 17, 2007 OpenBSD-5.3