Messages in this thread | ![/](/images/icornerl.gif) | | Date | Tue, 8 Apr 2003 09:58:09 -0400 (EDT) | From | "Richard B. Johnson" <> | Subject | Re: Magic numner of /dev/mem |
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On Tue, 8 Apr 2003, prasanna panchamukhi wrote:
> Hi, > > I have a few questions on /dev/mem > > 1.Is the magic no of /dev/mem is static or dynamic for > a specific architecture. > 2.If it is static/Dynamic why? > 3. How it is determined? > 3.Where do we use it? > > Thanks in advance... > > Regards > Prasanna S P.
/dev/mem is not a "file" so it doesn't have a magic number. It is a device that creates a "window" into all the mapped memory pages in the system.
If you were to read /dev/mem (just do `strings /dev/mem` from the root account), you will read the contents of physical memory.
Cheers, Dick Johnson Penguin : Linux version 2.4.20 on an i686 machine (797.90 BogoMips). Why is the government concerned about the lunatic fringe? Think about it.
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