Module for keyboard statistics / What should I look at?

["Nelson Castillo" <nelsoneci@gmail.com>]

Hi.

More than 2 years ago I wrote a small non-portable patch [1] to gather
some statistics
about keyboard usage[2] ( I show the counters with modulo 10 but still this is a
security risk. Perhaps some random noise should be added ).

[1] http://svn.arhuaco.org/svn/src/pcgotchi/trunk/proc-keystrokes.patch.linux-2.6.12.2.txt
[2] http://pcgotchi.blogspot.com/2005/10/11140-times.html

I liked to use this in my PC but stopped using this because I didn't
want to compile whenever I
upgraded Kernels (Debian).

I thought I had already asked in LKML as suggested by Blaisorblade[3],
but I did ask in
kernelnewbies instead[4].

[3] http://www.mail-archive.com/user-mode-linux-devel@lists.sourceforge.net/msg02168.html
[4] http://mail.nl.linux.org/kernelnewbies/2006-05/msg00367.html

My questions are:

* What should I read to do this in a module?
* Is there a better way to to this? (perhaps using /dev/input/... and
a user-space program) ?

Regards,
Nelson.-

PS: I don't wish to write a keylogger. I really want the statistics
and you are screwed if
someone gets to be root in your machine anyway.

-- 
http://arhuaco.org
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