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Re: error in reading frame-buffer device
On Wed, 18 Apr 2001, shubhendu wrote:
> pls have a look at /usr/src/linux-2.2.14/Documentation/fb/framebuffer.txt
> The frame buffer devices are also `normal' memory devices, this means, you
> can read and write their contents.
ok till here, one may need root permissions though
>You can, for example, make a screen
> snapshot by
> cp /dev/fb0 myfile
> There also can be more than one frame buffer at a time, e.g. if you have a
> graphics card in addition to the built-in hardware. The corresponding
> buffer devices (/dev/fb0 and /dev/fb1 etc.) work independently.
> Application software that uses the frame buffer device (e.g. the X server)
X will use the framebuffer device if specially asked to do so through the
so no conclusions as yet, i have to checkup if the default kernel is
compiled with the framebuffer or atleast has it as a module.