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GLXPCIB(4) Device Drivers Manual (i386) GLXPCIB(4)

glxpcibAMD CS5536 PCI-ISA bridge with timecounter, watchdog timer, and GPIO

glxpcib* at pci?
gpio* at glxpcib?
iic* at glxpcib?
isa* at glxpcib?

The glxpcib driver provides support for the AMD Geode CS5536 Companion chip. This device contains a number of components, including a PCI-ISA bridge. Besides the core functionality, the glxpcib driver implements a 32-bit 3.5 MHz timecounter, a watchdog timer device, a GPIO device, and an SMBus interface.

gpio(4), iic(4), intro(4), isa(4), pci(4), pcib(4), watchdog(4), gpioctl(8)

The glxpcib driver first appeared in OpenBSD 4.3.

The glxpcib driver was written by Michael Shalayeff. The GPIO parts were added by Marc Balmer <>.

August 14, 2013 OpenBSD-7.1