2010.01.06
Register a simple procfile read. The registration prints a message
to syslog and any attempt to read the new procfile prints another
message to the syslog. The new proc file is test (/proc/test).

  insmod ./procfsreg.o     insert the module
  lsmod                    see if the modules has loaded
  tail /var/log/syslog     see module load message
  ls /proc/test            see if the file /proc/test is there
  cat /proc/test           read the procfile.
  tail /var/log/syslog     see module read message
  rmmod procfsreg          unload module
  lsmod                    see if the modules has unloaded
  tail /var/log/syslog     see module unload message

This version provides both a sys_info and a read_proc. I don't
know which one is correct; it seems both have to be there but
I'm not sure.