Scrolling in framebuffer syscons

[Phileas Fogg]

Julian Elischer wrote:

>
> not sure if it's relevent, but remember that updating the screen mor ethan 50
> times a second is pointless.
> I'm not sure if the curent video console does it but having the final copy only
> done on 50Hz ticks can save a lot of copying.
>

Right, but then you have to handle VSYNC hardware interrupts and copy 
framebuffer data from system memory to video memory.

regards