add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/isdn/Kconfig
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@@ -1,3 +1,4 @@
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+# SPDX-License-Identifier: GPL-2.0-only
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 #
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 # ISDN device configuration
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 #
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 	bool "ISDN support"
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 	depends on NET && NETDEVICES
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 	depends on !S390 && !UML
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-	---help---
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+	help
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 	  ISDN ("Integrated Services Digital Network", called RNIS in France)
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 	  is a fully digital telephone service that can be used for voice and
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 	  data connections.  If your computer is equipped with an ISDN
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@@ -20,59 +21,8 @@
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 if ISDN
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-menuconfig ISDN_I4L
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-	tristate "Old ISDN4Linux (deprecated)"
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-	depends on TTY
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-	---help---
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-	  This driver allows you to use an ISDN adapter for networking
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-	  connections and as dialin/out device.  The isdn-tty's have a built
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-	  in AT-compatible modem emulator.  Network devices support autodial,
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-	  channel-bundling, callback and caller-authentication without having
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-	  a daemon running.  A reduced T.70 protocol is supported with tty's
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-	  suitable for German BTX.  On D-Channel, the protocols EDSS1
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-	  (Euro-ISDN) and 1TR6 (German style) are supported.  See
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-	  <file:Documentation/isdn/README> for more information.
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-
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-	  ISDN support in the linux kernel is moving towards a new API,
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-	  called CAPI (Common ISDN Application Programming Interface).
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-	  Therefore the old ISDN4Linux layer will eventually become obsolete.
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-	  It is still available, though, for use with adapters that are not
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-	  supported by the new CAPI subsystem yet.
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-source "drivers/isdn/i4l/Kconfig"
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-menuconfig ISDN_CAPI
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-	tristate "CAPI 2.0 subsystem"
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-	help
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-	  This provides CAPI (the Common ISDN Application Programming
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-	  Interface) Version 2.0, a standard making it easy for programs to
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-	  access ISDN hardware in a device independent way. (For details see
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-	  <http://www.capi.org/>.)  CAPI supports making and accepting voice
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-	  and data connections, controlling call options and protocols,
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-	  as well as ISDN supplementary services like call forwarding or
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-	  three-party conferences (if supported by the specific hardware
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-	  driver).
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-	  Select this option and the appropriate hardware driver below if
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-	  you have an ISDN adapter supported by the CAPI subsystem.
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-if ISDN_CAPI
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-
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 source "drivers/isdn/capi/Kconfig"
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-source "drivers/isdn/hardware/Kconfig"
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-endif # ISDN_CAPI
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-source "drivers/isdn/gigaset/Kconfig"
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-source "drivers/isdn/hysdn/Kconfig"
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-
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 source "drivers/isdn/mISDN/Kconfig"
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-
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-config ISDN_HDLC
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-	tristate
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-	select CRC_CCITT
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-	select BITREVERSE
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 endif # ISDN