kbd(7)                           DG/UX 5.4.2                          kbd(7)


NAME
       kbd - AViiON series workstation system keyboard

DESCRIPTION
       This manual page describes the device driver for the keyboard.  The
       STREAMS module that is referred to in some AT&T documentation as kbd
       is documented in attkbd(7).

       This device driver supports the system keyboard for the Data General
       AViiON series workstations.  The device is accessed using the
       standard open, close, read, write, ioctl, and select system calls.
       The system keyboard device may act as the physical system console for
       the DG/UX system depending on the system hardware configuration.
       When acting as the physical system console, data from the keyboard is
       diverted to the syscon(7) pseudo-device whenever the kbd device has
       not been explicitly opened by a user process. Opening the system
       keyboard device prevents it from providing input to the system
       console pseudo-device.

       The open system call provides a handle to access the system keyboard.

       The close system call frees the handle to the system keyboard
       established by open.

       The read system call transfers keyboard data from the system keyboard
       to the user program.  Data output by the keyboard consists of raw
       scan codes, a unique code for each key.  A single byte scan code is
       generated for a key press and a two byte sequence (a break code byte
       and a scan code byte) is generated when the key is released.  This
       device does NOT provide the standard DG/UX terminal interfaces.

       The write system call is not supported for the system keyboard.

       The ioctl system call has the following form:

            int ioctl(fildes, command, argument);
            int     fildes;
            int     command;
            int     argument;

       It can be used with the following commands:

       KBDRESET
              Resets the keyboard and keyboard LEDs.

       KBDGETLANGUAGE
              Returns the keyboard language in argument.

       KBDGETSTATE
              Returns the state of the LEDs and the number of scan codes in
              the keyboard driver's internal buffer in the structure pointed
              to by argument.





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kbd(7)                           DG/UX 5.4.2                          kbd(7)


       KBDTONELOW
              Sounds the keyboard bell tone.

       KBDTONEHIGH
              Sounds the keyboard bell tone.

       FSETOWN
              Set ownership of kbd device to the group specified in
              argument.

       FGETOWN
              Returns group owning the kbd device in argument.

       The select system call behaves the same as for termio(7) devices.

FILES
       /dev/kbd                              kbd device node
       /usr/include/sys/intdgkbdioctl.h  keyboard ioctl commands

SEE ALSO
       fcntl(2), ioctl(2), termio(2), attkbd(7), syscon(7).




































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