Subject: Re: Source for SCSI driver info?
To: Peter Brewer <firstname.lastname@example.org>
From: Allen Briggs <email@example.com>
Date: 05/04/1995 16:39:50
> >Put simply, its a mechanism for reading/writing a large block of virtual
> Sounds an awful lot like Mmap or mmap() to me?
When just this much is quoted, it does...
I believe we were talking about scatter/gather I/O, though, which
allows a DMA device to grab data from and put data into scattered
(i.e., non-contiguous) PHYSICAL memory addresses. The mmap() interface
is at a different (higher) level.
Allen Briggs - end killing - firstname.lastname@example.org ** MacBSD == NetBSD/mac68k **