Re: Adding overlays

[Komal Shah <komal_shah802003@yahoo.com>]

--- Ville Syrjälä <syrjala@sci.fi> wrote:
> 
> Userspace: DirectFB, VIDIX, XFree86/XOrg
> Kernel: mga_vid style module
> 
> I'm not sure about v4l. Does it work as a purely
> output device? Even if 
> it does I don't think many apps support it as such.

Ok. I have downloaded mga_vid - matrox driver for YUV
video interface. It is similar to what I had thought
of like /dev/overlay1/2 as character devices and not
touching the primary buffer(fb memory) and to write
directly on video1 or video2 overlay buffer memory. 

But is it possible to add "ioctls" base interface for
overlay (may be like in "kyro" fb driver) to get it
done, so we don't write separate driver. 



=====
---Komal Shah


		
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