ICNCTRL(8) Linux System Administration ICNCTRL(8)
icnctrl - configure ICN ISDN adaptor
icnctrl [-d Driver-Id] action options ...
icnctrl is used to setup the ICN ISDN device driver and for downloading the firmware into
the ISDN card.
The use of icnctrl makes sense, if you are using an ICN card only.
selects the S0 interface named by Driver-Id. Driver-Ids are defined during driver
initialisation. See icn(4) for a description of the syntax to be used for modu-
larised and monolithic driver versions. This option must be used to identify the
S0 interface if more than one S0 interface is existent. If a single ICN-2B is used,
it may be omitted. If using more than one card, support for the other cards is
enabled with the add action of icnctrl. Ids may not start with digits or small x,
because these values are misinterpreted as numeric parameters by insmod. For load-
ing the module, always the newest modutils package should be used to avoid problems
The following actions may be given to icnctrl.
add port [id1 [id2]]
enables support for an additional card in the driver. If id1 and id2 are missing,
adds an ICN-2B with an id given by the system. with id2 missing, adds an ICN-2B
with an Id given by the user. With both Ids given, adds an ICN-4B with both Ids
given by the user. There is no checking against port-conflicts. Ports are checked
later during first activation while downloading the firmware and can be changed at
runtime. Ids are checked against conflicts, and if a conflict happens, replaced by
the system in the same manner as if no Id was supplied. It is not allowed, to add
cards, after a load was done.
io [base-address port]
sets the address of the memory-mapped IO-region and the port-base. After loading
the icn-module into kernel-space, this command should be used as the very first
setup, if the hardware settings are different from the default settings below. If
both parameters are omitted, prints out current settings. The default memory
address is 0xD0000, the default port-base is 0x320. An ICN card uses 4 port-
addresses. The memory address is globally used for all cards (cards are mapped on
demand), while each card has its own port range. Memory range is 16k.
switches between normal (dialup) and leased-line mode. Leased-line mode is intended
for usage with S64K-lines or - if both channels are used - for S02. If the second
parameter is 1 , only one channel is enabled. If the second parameter is 2 or on
both channels are enabled. Leased lines do not have a D-channel. When leased-line
mode is enabled, the driver simulates incoming calls using special "phone-numbers"
for calling and called address which are generated as follows:
where x is the internal slot-number of the S0 interface. This number
starts with 0 for the first S0 interface and is incremented by one
for every S0 interface configured using the add action.
where x is equal to the channel number of the calling S0 interface
starting with 1.
load boot-code firmware [firmware2]
downloads the firmware into the card and starts operation. Using this command,
after loading the icn-module into kernel-space the first real access to the hard-
ware is done. Therefore the io action above, should be used before, if the hardware
settings are different from the default settings. Usually the images are located
in @DATADIR@. The boot-code is named loadpg.bin. The firmware depends on the D-
channel protocol of the ISDN line. For German 1TR6-lines, the firmware is named
pc_1t_ca.bin. For Euro-ISDN-lines, it is named pc_eu_ca.bin. When loading an
ICN-4B, two firmware parameters have to be supplied. The first firmware is used for
the upper S0 connector, the second firmware is used for the lower S0 connector
(towards the card's slot connector).
dump is available if the program is configured using the --enable-dump option only. The
contents of internal driver variables is dumped on stdout.
This is the image of the bootstrap loader, which is loaded first, then loads the
firmware into the card's memory and starts execution.
This is the image of the firmware designed for the German 1TR6 protocol.
This is the image of the firmware, designed for Euro ISDN.
The following diagnostics may be issued on stderr:
Read error on boot-code
The file supplied as boot-code has less than 4096 bytes length or could not be
Read error on firmware
The file supplied as firmware has less than 65536 bytes length or could not be
No bugs so far.
(C) 1997 by Fritz Elfert <email@example.com>
isdnctrl(8), icn(4), isdnctrl(4), ttyI(4).
isdn4k-utils-3.1pre4 1999/09/06 ICNCTRL(8)