VCC(4) Device Drivers Manual (sparc64) VCC(4)

vcc, vccttyvirtual console concentrator

vcc* at cbus?
vcctty* at vcc?

The vcc driver provides access to the consoles of guest domains from the control domain of sun4v systems. It provides a standard tty(4) interface on top of a logical domain channel provided by the UltraSPARC Hypervisor.


cbus(4), intro(4), tty(4)

The vcc driver first appeared in OpenBSD 4.6.

The vcc driver was written by Mark Kettenis <>.

November 21, 2015 OpenBSD 7.5