oops

[Lothar Krause <loti@gmx.at>]

> rt-linux FIFOs.
> 	Mbuff is great, but the memory it returns is managed by the system
> and it is composed of non-contiguous regions.  The memory for dma must be
> given in terms of the true physical address, and must be contiguous.

Is there some doc available addressing the problem of
accessing this above-linux area and using it in both user / kernel space?