Re: Bus mastering to user space

[Matthew Jacob <mjacob@feral.com>]

>From tech-kern-owner-mjacob=feral.com@NetBSD.ORG  Fri Jul 18 13:52:02 1997
>Do the *BSD's support bus mastering DMA devices that transfer to/from user
>memory? I've been told that Linux does not and will not.


Yes, *BSD supports DMA to/from user space.

>The goal here is to reduce the copying of data to support 100-200
>MBytes/sec devices. What is the fastest throughput anyone has achieved?

Dunno.