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Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
130 lines
4.6 KiB
Plaintext
130 lines
4.6 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Old ISDN4Linux config
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#
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if ISDN_I4L
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config ISDN_PPP
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bool "Support synchronous PPP"
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depends on INET
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select SLHC
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help
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Over digital connections such as ISDN, there is no need to
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synchronize sender and recipient's clocks with start and stop bits
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as is done over analog telephone lines. Instead, one can use
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"synchronous PPP". Saying Y here will include this protocol. This
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protocol is used by Cisco and Sun for example. So you want to say Y
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here if the other end of your ISDN connection supports it. You will
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need a special version of pppd (called ipppd) for using this
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feature. See <file:Documentation/isdn/README.syncppp> and
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<file:Documentation/isdn/syncPPP.FAQ> for more information.
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config ISDN_PPP_VJ
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bool "Use VJ-compression with synchronous PPP"
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depends on ISDN_PPP
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help
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This enables Van Jacobson header compression for synchronous PPP.
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Say Y if the other end of the connection supports it.
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config ISDN_MPP
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bool "Support generic MP (RFC 1717)"
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depends on ISDN_PPP
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help
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With synchronous PPP enabled, it is possible to increase throughput
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by bundling several ISDN-connections, using this protocol. See
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<file:Documentation/isdn/README.syncppp> for more information.
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config IPPP_FILTER
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bool "Filtering for synchronous PPP"
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depends on ISDN_PPP
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help
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Say Y here if you want to be able to filter the packets passing over
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IPPP interfaces. This allows you to control which packets count as
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activity (i.e. which packets will reset the idle timer or bring up
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a demand-dialled link) and which packets are to be dropped entirely.
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You need to say Y here if you wish to use the pass-filter and
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active-filter options to ipppd.
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config ISDN_PPP_BSDCOMP
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tristate "Support BSD compression"
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depends on ISDN_PPP
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help
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Support for the BSD-Compress compression method for PPP, which uses
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the LZW compression method to compress each PPP packet before it is
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sent over the wire. The machine at the other end of the PPP link
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(usually your ISP) has to support the BSD-Compress compression
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method as well for this to be useful. Even if they don't support it,
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it is safe to say Y here.
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config ISDN_AUDIO
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bool "Support audio via ISDN"
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help
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If you say Y here, the modem-emulator will support a subset of the
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EIA Class 8 Voice commands. Using a getty with voice-support
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(mgetty+sendfax by <gert@greenie.muc.de> with an extension, available
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with the ISDN utility package for example), you will be able to use
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your Linux box as an ISDN-answering machine. Of course, this must be
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supported by the lowlevel driver also. Currently, the HiSax driver
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is the only voice-supporting driver. See
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<file:Documentation/isdn/README.audio> for more information.
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config ISDN_TTY_FAX
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bool "Support AT-Fax Class 1 and 2 commands"
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depends on ISDN_AUDIO
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help
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If you say Y here, the modem-emulator will support a subset of the
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Fax Class 1 and 2 commands. Using a getty with fax-support
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(mgetty+sendfax, hylafax), you will be able to use your Linux box as
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an ISDN-fax-machine. This must be supported by the lowlevel driver
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also. See <file:Documentation/isdn/README.fax> for more information.
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config ISDN_X25
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bool "X.25 PLP on top of ISDN"
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depends on X25
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help
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This feature provides the X.25 protocol over ISDN connections.
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See <file:Documentation/isdn/README.x25> for more information
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if you are thinking about using this.
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menu "ISDN feature submodules"
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config ISDN_DRV_LOOP
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tristate "isdnloop support"
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depends on BROKEN_ON_SMP
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help
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This driver provides a virtual ISDN card. Its primary purpose is
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testing of linklevel features or configuration without getting
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charged by your service-provider for lots of phone calls.
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You need will need the loopctrl utility from the latest isdn4k-utils
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package to set up this driver.
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config ISDN_DIVERSION
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tristate "Support isdn diversion services"
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help
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This option allows you to use some supplementary diversion
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services in conjunction with the HiSax driver on an EURO/DSS1
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line.
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Supported options are CD (call deflection), CFU (Call forward
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unconditional), CFB (Call forward when busy) and CFNR (call forward
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not reachable). Additionally the actual CFU, CFB and CFNR state may
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be interrogated.
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The use of CFU, CFB, CFNR and interrogation may be limited to some
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countries. The keypad protocol is still not implemented. CD should
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work in all countries if the service has been subscribed to.
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Please read the file <file:Documentation/isdn/README.diversion>.
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endmenu
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comment "ISDN4Linux hardware drivers"
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source "drivers/isdn/hisax/Kconfig"
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# end ISDN_I4L
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endif
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