home | help 
UKBD(4) 		     Kernel Interfaces Manual			 UKBD(4)

NAME
     ukbd -- USB keyboard driver

SYNOPSIS
     device ukbd

DESCRIPTION
     The ukbd driver provides support for keyboards that attach to the USB port.
     usb(4)  and  one  of uhci(4) or ohci(4) must be configured in the kernel as
     well.

CONFIGURATION
     By default, the keyboard subsystem does not create the appropriate  devices
     yet.   Make  sure	you reconfigure your kernel with the following option in
     the kernel config file:

	   options KBD_INSTALL_CDEV

     Go to /dev and make device nodes kbd*:

	   sh MAKEDEV kbd0 kbd1

     If both an AT keyboard as well as USB keyboards are used at the same  time,
     the  AT  keyboard	will  appear as kbd0 in /dev.  The USB keyboards will be
     kbd1, kbd2, etc.  You can see some information about the keyboard with  the
     following command:

	   kbdcontrol -i < /dev/kbd1

     or load a keymap with

	   kbdcontrol -l keymaps/pt.iso < /dev/kbd1

     See kbdcontrol(1) for more possible options.

     You can swap console keyboards by using the command

	   kbdcontrol -k /dev/kbd1

     From  this point on onwards, the first USB keyboard will be the keyboard to
     be used as the console.

     If you want to use a USB keyboard as your default and not use  an	AT  key-
     board at all, you will have to remove the device atkbd line from the kernel
     configuration file.  Because of the order of the device initialization, the
     USB  keyboard  will be detected after the console driver initializes itself
     and you have to explicitly tell the console driver to use the existence  of
     the USB keyboard.	This can be done in one of the following two ways.

     Run the following command as a part of system initialization:

	   kbdcontrol -k /dev/kbd0 < /dev/ttyv0 > /dev/null

     (Note  that  as  the  USB	keyboard is the only keyboard, it is accessed as
     /dev/kbd0) or otherwise tell the console driver to periodically look for  a
     keyboard by setting a flag in the kernel configuration file:

	   device sc0 at isa? flags 0x100

     With  the above flag, the console driver will try to detect any keyboard in
     the system if it did not detect one while it was initialized at boot time.

DRIVER CONFIGURATION
	   options KBD_INSTALL_CDEV

     Make the keyboards available through a character device in /dev.

	   options UKBD_DFLT_KEYMAP
	   makeoptions "UKBD_DFLT_KEYMAP=fr.iso"

     The above lines will put the French ISO keymap in the ukbd driver.  You can
     specify any keymap in /usr/share/syscons/keymaps with this option.

	   options KBD_DISABLE_KEYMAP_LOADING

     Do not allow the user to change the keymap.  Note that these  options  also
     affect the AT keyboard driver, atkbd(4).

FILES
     /dev/kbd*	blocking device nodes

EXAMPLES
	   device ukbd

     Add the ukbd driver to the kernel.

SEE ALSO
     kbdcontrol(1), ohci(4), syscons(4), uhci(4), usb(4), config(8)

AUTHORS
     The ukbd driver was written by Lennart Augustsson <augustss@cs.chalmers.se>
     for  NetBSD  and was substantially rewritten for FreeBSD by Kazutaka YOKOTA
     <yokota@zodiac.mech.utsunomiya-u.ac.jp>.

     This manual page was written by Nick  Hibma  <n_hibma@FreeBSD.org>  with  a
     large	 amount       of       input	  from	    Kazutaka	  YOKOTA
     <yokota@zodiac.mech.utsunomiya-u.ac.jp>.

FreeBSD 4.5			 April 11, 1999 			 UKBD(4)
home | help