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NAME    [Toc]    [Back]

     wskbd - generic keyboard support in wscons

SYNOPSIS    [Toc]    [Back]

     wskbd* at pckbd? console ? mux 1
     wskbd* at gsckbd? console ? mux 1 (hppa)
     (PS/2 keyboard)
     wskbd* at ukbd? console ? mux 1
     (USB keyboard)
     wskbd* at akbd? console ? mux 1
     (Apple ADB keyboard)
     wskbd* at comkbd? console ? mux 1
     wskbd* at zskbd? console ? mux 1
     (Sun serial keyboard)
     wskbd* at hilkbd? console ? mux 1
     (HIL keyboard)

DESCRIPTION    [Toc]    [Back]

     The wskbd driver handles common tasks for  keyboards  within
the wscons(4)
     framework.  It is attached to the hardware specific keyboard
drivers and
     provides their connection to  ``wsdisplay''  devices  and  a
character device

     The common keyboard support consists of:

     +o    Mapping from keycodes (defined by the specific keyboard
driver) to
         keysyms (hardware independent, defined in

     +o   Handling of ``compose'' sequences.  Characters  commonly
not present
         as separate keys on keyboards can be generated after either a special
         ``compose'' key is pressed or a ``dead accent''  character is used.

     +o    Certain  translations, like turning an ``ALT'' modifier
into an
         ``ESC'' prefix.

     +o   Automatic key repetition (``typematic'').

     +o   Parameter handling for ``keyboard bells''.

     +o   Generation of ``keyboard events'' for use by X  servers.

     The  wskbd  driver  provides  a number of ioctl functions to
control key maps
     and  other  parameters.   These  functions  are   accessible
through the associated
 ``wsdisplay'' device as well.  A complete list is in
     /usr/include/dev/wscons/wsconsio.h.  The wsconsctl(8) utility allows access
 to key maps and other variables.

     The console locator in the configuration line refers to  the
device's use
     as  input  part  of  the operating system console.  A device
     containing a positive value here will only match if the  device is in use
     as  system  console.  (The console device selection in early
system startup
     is not influenced.)  This way, the  console  device  can  be
connected to a
     known wskbd device instance.

     The  wskbd  driver  traps  certain key sequences intended to
perform special
     functions.  The  Ctrl+Alt+Esc  sequence  will  initiate  the
ddb(4) kernel debugger
  if  the  ``ddb.console''  sysctl(8) variable is set.
When attached
     to a wsdisplay(4) device, Ctrl+Alt+Fx switches virtual  terminals and the
     Shift+PgUp  and  Shift+PgDn  combinations provide scrollback
     if the underlying hardware driver supports it.

FILES    [Toc]    [Back]


SEE ALSO    [Toc]    [Back]

     akbd(4),   comkbd(4),   gsckbd(4),   hilkbd(4),    intro(4),
pckbd(4), ukbd(4),
     wscons(4), wsmux(4), zskbd(4), wsconsctl(8)

OpenBSD      3.6                        February     11,     2003
[ Back ]
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