NAME
wskbd
- generic keyboard support in wscons
SYNOPSIS
wskbd* at pckbd? console ? mux 1
(standard PC keyboard)
wskbd* at ukbd? console ? mux 1
(USB keyboard)
wskbd* at lkkbd? console ? mux 1
(DEC LK200/400 serial keyboard)
wskbd0 at akbd? console ? mux 1
(Apple ADB keyboard)
wskbd0 at nextkbd? console ? mux 1
(NeXT keyboard)
wskbd* at vrkiu? console ? mux 1
(NEC VR4000 series HPC keyboard)
wskbd* at skbd? console ? mux 1
(keyboard of misc hpcmips handheld devices)
wskbd* at btkbd? console ? mux 1
(Bluetooth keyboard)
DESCRIPTION
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 interface.
The common keyboard support consists of:
-
Mapping from keycodes (defined by the specific keyboard driver) to
keysyms (hardware independent, defined in
/usr/include/dev/wscons/wsksymdef.h
).
-
Handling of
``compose''
sequences. Characters commonly not present as separate key on keyboards
can be generated after either a special
``compose''
key is pressed or a
``dead accent''
character is used.
-
Certain translations, like turning an
``ALT''
modifier into an
``ESC''
prefix.
-
Automatic key repetition
(``typematic'').
-
Parameter handling for
``keyboard bells''.
-
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 though the
associated
``wsdisplay''
device as well. A complete list is in
/usr/include/dev/wscons/wsconsio.h
.
The
wsconsctl(8)
utility allows to access 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 specification 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.
FILES
-
/dev/wskbd*
-
/usr/include/dev/wscons/wsksymdef.h
-
/usr/include/dev/wscons/wsconsio.h
.
SEE ALSO
btkbd(4),
pckbd(4),
ukbd(4),
wscons(4),
wsmux(4),
wsconsctl(8),
wskbd(9)