With all this talk about X servers and such, I was thinking about

writing some graphics programs which would be able to do their work

outside the kernel, by accessing video memory directly. Does linux

let one establish a mapping between a region of a process's virtual

address space and a region of physical memory (I'm thinking of

something like the shmxxx" family of system calls for dealing with

shared memory)?
Derek Lieber

derek@watson.ibm.com