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NetBSD 6.1.5 - man page for genfb (netbsd section 4)

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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
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