[maemo-developers] Support for frame buffer in N800

[From: Siarhei Siamashka]

On Wednesday 21 March 2007 09:58, Sampath Goud 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).