Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   9087 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

ISDN(4)			 BSD Kernel Interfaces Manual		       ISDN(4)

NAME
     isdn — ISDN kernel to userland master device

SYNOPSIS
     pseudo-device isdn

DESCRIPTION
     The isdn device driver is used by the isdnd(8) daemon to exchange mes‐
     sages with the ISDN kernel part for the purpose of call establishment,
     control and disconnection and to access various control and status infor‐
     mation.

     The messages and message parameters are documented in the include file
     /usr/include/netisdn/i4b_ioctl.h.

     The available ioctl's are:

	   I4B_CDID_REQ
		   Request a unique Call Description IDentifier (cdid) which
		   identifies uniquely a single interaction of the local D
		   channel with the exchange.
	   I4B_CONNECT_REQ
		   Actively request a call setup to a remote ISDN subscriber.
	   I4B_CONNECT_RESP
		   Respond to an incoming call, either accept, reject or
		   ignore it.
	   I4B_DISCONNECT_REQ
		   Actively terminate a connection.
	   I4B_CTRL_INFO_REQ
		   Request information about an installed ISDN controller
		   card.
	   I4B_DIALOUT_RESP
		   Give information about call setup to driver who requested
		   dialing out.
	   I4B_TIMEOUT_UPD
		   Update the kernels timeout value(s) in case of dynamically
		   calculated shorthold mode timing changes.
	   I4B_UPDOWN_IND
		   Inform the kernel userland drivers about interface soft
		   up/down status changes.
	   I4B_CTRL_DOWNLOAD
		   Download firmware to active card(s).
	   I4B_ACTIVE_DIAGNOSTIC
		   Return diagnostic information from active cards.

     Status and event messages available from the kernel are:

	   MSG_CONNECT_IND
		   An incoming call from a remote ISDN user is indicated.
	   MSG_CONNECT_ACTIVE_IND
		   After an incoming call has been accepted locally or an out‐
		   going call has been accepted by a remote, the exchange sig‐
		   naled an active connection and the corresponding B-channel
		   is switched through.
	   MSG_DISCONNECT_IND
		   A call was terminated.
	   MSG_DIALOUT_IND
		   A userland interface driver requests the daemon to dial out
		   (typically a network interface when a packet arrives in its
		   send queue).
	   MSG_IDLE_TIMEOUT_IND
		   A call was terminated by the isdn4bsd kernel driver because
		   a B-channel idle timeout occurred.
	   MSG_ACCT_IND
		   Accounting information from a network driver.
	   MSG_CHARGING_IND
		   Charging information from the kernel.

SEE ALSO
     isdnd(8)

AUTHORS
     The isdn device driver and this man page were written by Hellmuth
     Michaelis ⟨hm@kts.org⟩.

BSD			       February 3, 1998				   BSD

                             _         _         _ 
                            | |       | |       | |     
                            | |       | |       | |     
                         __ | | __ __ | | __ __ | | __  
                         \ \| |/ / \ \| |/ / \ \| |/ /  
                          \ \ / /   \ \ / /   \ \ / /   
                           \   /     \   /     \   /    
                            \_/       \_/       \_/ 

Vote for polarhome