pci

GENFB(4)						   BSD Kernel Interfaces Manual 						  GENFB(4)

NAME

     genfb -- generic framebuffer console driver

SYNOPSIS

     genfb* at pci?
     genfb* at sbus?
     wsdisplay* at genfb?

DESCRIPTION

     The genfb driver provides support for generic framebuffers that have no native driver.  All it needs are some parameters to describe the
     framebuffer and an address.

   PCI
     When attaching to a pci(4) bus the driver is configured via device properties:

     width (uint32)
		   Width in pixels.

     height (uint32)
		   Height in pixels.

     stride (uint32)
		   Line size in bytes.

     depth (uint32)
		   Bits per pixel.

     is_console (bool)
		   If true, genfb will try to become the system console.

     address (uint32)
		   Bus address of the framebuffer.

   SBus
     When attaching to sbus(4) all those parameters are retrieved from the firmware.

SEE ALSO

     pci(4), sbus(4), wscons(4), wsdisplay(4)

BUGS

     There is no way to change the color map even when the firmware supports it.  The pci(4) bus frontend has only been tested on macppc, i386,
     and amd64 and requires machine dependent code to pass the properties mentioned above.  So far only macppc, i386, and amd64 provides them.

BSD
								  August 23, 2009							       BSD