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Comment: delete kerneltrap.org URL (it's gone); use man page instead
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← Revision 9 as of 2021-01-12 06:38:58 ⇥
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Comment: better output formatting
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| . 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. |
/dev/mem 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. /dev/kmem is typically created by: * mknod -m 640 /dev/kmem c 1 2 * chown root:kmem /dev/kmem /dev/port 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 Here is the description on the difference between kmem and mem. |
Here is how the kmem can be statically created:
see man 4 kmem
/dev/mem 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. /dev/kmem is typically created by:
- mknod -m 640 /dev/kmem c 1 2
- chown root:kmem /dev/kmem
/dev/port 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
Here is the description on the difference between kmem and mem.