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# Video configuration
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menu "Graphics support"
config FB
tristate "Support for frame buffer devices"
---help---
The frame buffer device provides an abstraction for the graphics
hardware. It represents the frame buffer of some video hardware and
allows application software to access the graphics hardware through
a well-defined interface, so the software doesn't need to know
anything about the low-level (hardware register) stuff.
Frame buffer devices work identically across the different
architectures supported by Linux and make the implementation of
application programs easier and more portable; at this point, an X
server exists which uses the frame buffer device exclusively.
On several non-X86 architectures, the frame buffer device is the
only way to use the graphics hardware.
The device is accessed through special device nodes, usually located
in the /dev directory, i.e. /dev/fb*.
You need an utility program called fbset to make full use of frame
buffer devices. Please read <file:Documentation/fb/framebuffer.txt>
and the Framebuffer-HOWTO at
<http://www.tahallah.demon.co.uk/programming/prog.html> for more
information.
Say Y here and to the driver for your graphics board below if you
are compiling a kernel for a non-x86 architecture.
If you are compiling for the x86 architecture, you can say Y if you
want to play with it, but it is not essential. Please note that
running graphical applications that directly touch the hardware
(e.g. an accelerated X server) and that are not frame buffer
device-aware may cause unexpected results. If unsure, say N.
config FB_CFB_FILLRECT
tristate
depends on FB
default n
---help---
Include the cfb_fillrect function for generic software rectangle
filling. This is used by drivers that don't provide their own
(accelerated) version.
config FB_CFB_COPYAREA
tristate
depends on FB
default n
---help---
Include the cfb_copyarea function for generic software area copying.
This is used by drivers that don't provide their own (accelerated)
version.
config FB_CFB_IMAGEBLIT
tristate
depends on FB
default n
---help---
Include the cfb_imageblit function for generic software image
blitting. This is used by drivers that don't provide their own
(accelerated) version.
config FB_SOFT_CURSOR
tristate
depends on FB
default n
---help---
Include the soft_cursor funct
