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piyushpandey
n00b
Joined: 05 Nov 2010
Posts: 1
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 Posted: Fri Nov 05, 2010 3:59 am Post subject: Framebuffer related topic |
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Hi guys
I am a newbie, and I want to know some facts related to frame buffer .
I want to know basically what is a frame buffer and how it works basically I searched the Google and I have got lots of pages on the frame buffer topic, but I want to know basically that to see a frame buffer is it required to have a frame buffer device or it is possible to create the frame buffer without it.
Is there any good documentation for it or good books which can describe me about it very much.
Thank you |
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BitJam
Advocate
Joined: 12 Aug 2003
Posts: 2508
Location: Silver City, NM
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| Posted: Fri Nov 05, 2010 6:53 am Post subject: |
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Take a look at the file /usr/src/linux/Documentation/fb/framebuffer.txt
| piyushpandey wrote: | | I want to know basically that to see a frame buffer is it required to have a frame buffer device or it is possible to create the frame buffer without it. |
AFAIK, it makes no sense to think of a framebuffer without a framebuffer device. If there is no framebuffer device then there is no way to put information into the framebuffer. One of the beautiful simplifications of Unix and GNU/Linux is that everything is a file. Special files for talking with bits of hardware are called devices and are traditionally under /dev although some communication is also available under /proc and /sys. The framebuffer device is what the OS uses to talk with the framebuffer just like a disk device is what the OS uses to talk with a disk drive. |
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