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List:       linux-video
Subject:    Re: [video4linux] API spec
From:       Alan Cox <alan () cymru ! net>
Date:       1998-07-28 10:27:25
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> > The kernel then ensures that frame buffer requests from apps never DMA out
> > of the permitted area.
> > 
> 
> How does it do that ? I certainly can program any address into 848 :)

Kernel as in the bt848 driver. It takes the union of the requested region
and screen space and writes DMA rules appropriately

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