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FAQ/devkmem

Here is how the kmem can be statically created:

http://kerneltrap.org/man/linux/man4/kmem.4

  • . It is typically created by: mknod -m 660 /dev/mem c 1 1 chown root:kmem /dev/mem The file kmem is the same as mem , except that the kernel virtual memory rather than physical memory is accessed. . . It is typically created by: mknod -m 640 /dev/kmem c 1 2 chown root:kmem /dev/kmem portfP is similar to mem , but the I/O ports are accessed. . . It is typically created by: mknod -m 660 /dev/port c 1 4 chown root:mem /dev/port

And here is the description on the difference between kmem and mem.

http://lwn.net/Articles/147902/

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last edited 2008-04-11 09:12:48 by tthtlc