[maemo-developers] Support for frame buffer in N800

From: Eero Tamminen eero.tamminen at nokia.com
Date: Wed Mar 21 12:12:22 EET 2007

ext Siarhei Siamashka wrote:
>> I want to know if there is frame buffer support in N800.
>> I have written a simple application (drawing a pixel) on frame buffer and
>> tried to execute it on N800 in root mode.
>> But it prompts the message "permission denied".
>> Please let me know if there is support for frame buffer in N800. If there
>> is support then how can I use it?
> Yes, it is available. You should use /dev/fb0 if you want RGB color format
> (/dev/fb1 and /dev/fb2 are used for video planes generally in YUV color
> format).
> But do you absolutely need to use framebuffer? Using framebuffer directly
> introduces a lot of problems synchronizing access to it with xserver (and it
> can't be done in a completely right way currently as far as I know).

Using framebuffer is completely acceptable solution if one doesn't
use Xserver and rest of the UI.  I.e. wants to replace the whole
UI framework.  I don't think there's much sense in this, but hey,
it's an option.  :-)

	- Eero

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