#
  # ISDN device configuration
  #

  menuconfig ISDN

  	bool "ISDN support"

  	depends on NET

  	depends on !S390 && !UML

  	---help---

  	  ISDN ("Integrated Services Digital Network", called RNIS in France)
  	  is a fully digital telephone service that can be used for voice and
  	  data connections.  If your computer is equipped with an ISDN
  	  adapter you can use it to connect to your Internet service provider
  	  (with SLIP or PPP) faster than via a conventional telephone modem
  	  (though still much slower than with DSL) or to make and accept
  	  voice calls (eg. turning your PC into a software answering machine
  	  or PABX).

  
  	  Select this option if you want your kernel to support ISDN.

  if ISDN

  menuconfig ISDN_I4L

  	tristate "Old ISDN4Linux (deprecated)"

  	---help---

  	  This driver allows you to use an ISDN adapter for networking

  	  connections and as dialin/out device.  The isdn-tty's have a built
  	  in AT-compatible modem emulator.  Network devices support autodial,
  	  channel-bundling, callback and caller-authentication without having
  	  a daemon running.  A reduced T.70 protocol is supported with tty's
  	  suitable for German BTX.  On D-Channel, the protocols EDSS1
  	  (Euro-ISDN) and 1TR6 (German style) are supported.  See
  	  <file:Documentation/isdn/README> for more information.
  
  	  ISDN support in the linux kernel is moving towards a new API,
  	  called CAPI (Common ISDN Application Programming Interface).

  	  Therefore the old ISDN4Linux layer will eventually become obsolete.
  	  It is still available, though, for use with adapters that are not
  	  supported by the new CAPI subsystem yet.

  source "drivers/isdn/i4l/Kconfig"

  menuconfig ISDN_CAPI

  	tristate "CAPI 2.0 subsystem"

  	help

  	  This provides CAPI (the Common ISDN Application Programming
  	  Interface) Version 2.0, a standard making it easy for programs to
  	  access ISDN hardware in a device independent way. (For details see
  	  <http://www.capi.org/>.)  CAPI supports making and accepting voice
  	  and data connections, controlling call options and protocols,
  	  as well as ISDN supplementary services like call forwarding or
  	  three-party conferences (if supported by the specific hardware
  	  driver).
  
  	  Select this option and the appropriate hardware driver below if
  	  you have an ISDN adapter supported by the CAPI subsystem.

  if ISDN_CAPI

  source "drivers/isdn/capi/Kconfig"
  
  source "drivers/isdn/hardware/Kconfig"

  endif # ISDN_CAPI

  source "drivers/isdn/gigaset/Kconfig"

  source "drivers/isdn/hysdn/Kconfig"
  
  source "drivers/isdn/mISDN/Kconfig"
  
  config ISDN_HDLC
  	tristate
  	select CRC_CCITT
  	select BITREVERSE

  endif # ISDN