VIAPM(4)                  OpenBSD Programmer's Manual                 VIAPM(4)

NAME
     viapm - VIA SMBus controller

SYNOPSIS
     viapm* at pci?
     iic* at viapm?

DESCRIPTION
     The viapm driver provides support for the bus control and power manage-
     ment component of the VIA VT8233, VT8235, VT8237, VT8237A, VT8237S,
     VT8251, CX700, CX800 and VX855 South Bridges.  Only the SMBus host inter-
     face is supported and can be used with the iic(4) framework.

SEE ALSO
     iic(4), intro(4), pci(4)

HISTORY
     The viapm driver first appeared in OpenBSD 3.9.

AUTHORS
     The viapm driver was written by Mark Kettenis <kettenis@openbsd.org>.

BUGS
     The driver doesn't support commands with a data buffer size of more than
     2 bytes.

OpenBSD 4.7                      June 26, 2009                               1
