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
Thewskbd 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.
Ioctls
The following
ioctl(2) calls are provided by the wskbd
driver or by devices which use it. Their definitions are found in
dev/wscons/wsconsio.h.
WSKBDIO_GTYPE- Get the keyboard type.
WSKBDIO_COMPLEXBELL, WSKBDIO_SETBELL, WSKBDIO_GETBELL, WSKBDIO_SETDEFAULTBELL, WSKBDIO_GETDEFAULTBELL(struct wsmouse_repeat)- Get and set keyboard bell settings.
WSKBDIO_SETKEYREPEAT, WSKBDIO_GETKEYREPEAT, WSKBDIO_SETDEFAULTKEYREPEAT, WSKBDIO_GETDEFAULTKEYREPEAT(struct wskbd_keyrepeat_data)- Get and set keyboard autorepeat settings.
WSKBDIO_SETLEDS, WSKBDIO_GETLEDS(int)- Get and set keyboard LED settings.
WSKBDIO_GETMAP, WSKBDIO_SETMAP(struct wskbd_map_data)- Get and set keyboard keymapping settings.
WSKBDIO_GETENCODING, WSKBDIO_SETENCODING(kbd_t)- Get and set keyboard encoding settings.
WSKBDIO_GETKEYCLICK, WSKBDIO_SETKEYCLICK(int)- Get and set keyboard keyclick settings.
WSKBDIO_SETVERSION(int)- Set the wscons_event protocol version. The default is 0 for binary
compatibility. The latest version is always available as
WSKBD_EVENT_VERSION, and is currently 1. All new code should use a call similar to the below to ensure the correct version is returned.int ver = WSKBD_EVENT_VERSION; if (ioctl(fd, WSKBDIO_SETVERSION, &ver) == -1) err(EXIT_FAILURE, "cannot set version");
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)