Provided by: console-tools_0.2.3dbs-65.1ubuntu2_i386 bug

NAME

       showkey - examine the scan codes and keycodes sent by the keyboard

SYNOPSIS

       showkey  [  -[hVskm]  | --help | --version | --scancodes | --keycodes |
       --keymap ] [ -t N | --timeout=N ]

DESCRIPTION

       showkey prints to standard output either the scan codes,  the  keycode,
       or  the  character of each key pressed/released. The program runs until
       10 seconds (or the amount of time specified  by  the  --timeout  or  -t
       option) has elapsed since the last key press or release event, or until
       it receives a suitable signal, like SIGTERM, from another process.

       showkey  has  three  modes  of  operation,  scancode  dumping,  keycode
       dumping,  and  keymap  testing,  selected by a command line option (see
       below).

COMMANDS

       -h --help
              showkey prints to the standard error output its version  number,
              a short usage message, then exits.

       -V --version
              showkey  prints to the standard error output its version number,
              then exits.

       -s --scancodes
              Starts showkey in scan code dump mode.

              In this mode, showkey prints in  hexadecimal  format  each  byte
              received from the keyboard to the standard output. A new line is
              printed when an interval of about 0.1 seconds occurs between the
              bytes  received,  or  when the internal receive buffer fills up.
              This can be used to determine roughly, what byte  sequences  the
              keyboard  sends  at  once  on  a  given key press. The scan code
              dumping mode is primarily intended for  debugging  the  keyboard
              driver or other low level interfaces. As such it shouldn’t be of
              much interest to the regular end-user.

       -k --keycodes
              Starts showkey in keycode dump mode. This is the  default,  when
              no command is specified is specified.

              In  this mode, showkey prints to the standard output the keycode
              number or each key pressed or released. The kind of  the  event,
              press  or  release,  is  also  reported.   Keycodes  are numbers
              assigned by the kernel to each individual  physical  key.  Every
              key  has  always only one associated keycode number, whether the
              keyboard sends single or multiple scan codes when  pressing  it.
              Using showkey in this mode, you can find out what numbers to use
              in your personalized keymap files.

       -m --keymap
              Starts showkey in keycode dump mode.

              In this mode,  showkey  displays  the  characters  as  they  are
              translated  by  the  kernel  using the current keymap. It may be
              useful to writers of install programs, to allow the user to test
              a new keyboard before really installing it.

OPTIONS

       -t N --timeout=N
              This option changes the timeout (in seconds) from its default of
              10s.

AUTHOR

       showkey was developed by Risto Kankkunen for kbd-0.81.

       It was later extended by Yann Dirson <dirson@debian.org> to support the
       --keymap command and the --timeout option.

BUGS

       The  --keymap  mode should report action keys by displaying what action
       should be performed, instead of executing the action.

SEE ALSO

       loadkeys(1), dumpkeys(1), keymaps(5), setkeycodes(8).