FreeBSD 7.0 manual page repository

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ukbd - USB keyboard driver



      ukbd - USB keyboard driver


      To compile this driver into the kernel, place the following line in your
      kernel configuration file:
            device ukbd
      Alternatively, to load the driver as a module at boot time, place the
      following line in loader.conf(5):


      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.


      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
      If both an AT keyboard 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 fol‐
      lowing 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, the first USB keyboard will be the keyboard to be
      used by 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 ker‐
      nel configuration file.  Because of the device initialization order, 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
            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).


      /dev/kbd*  blocking device nodes


            device ukbd
      Add the ukbd driver to the kernel.
      kbdcontrol(1), ohci(4), syscons(4), uhci(4), usb(4), config(8)


      The ukbd driver was written by Lennart Augustsson
      〈〉 for NetBSD and was substantially rewritten for
      FreeBSD by Kazutaka YOKOTA 〈〉.
      This manual page was written by Nick Hibma 〈〉 with a
      large amount of input from Kazutaka YOKOTA


Based on BSD UNIX
FreeBSD is an advanced operating system for x86 compatible (including Pentium and Athlon), amd64 compatible (including Opteron, Athlon64, and EM64T), UltraSPARC, IA-64, PC-98 and ARM architectures. It is derived from BSD, the version of UNIX developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals. Additional platforms are in various stages of development.