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NetBSD 6.1.5 - man page for isdn (netbsd section 4)

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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 messages with the ISDN
     kernel part for the purpose of call establishment, control and disconnection and to access
     various control and status information.

     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 short-
		   hold 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 outgoing call has been
		   accepted by a remote, the exchange signaled an active connection and the cor-
		   responding 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 net-
		   work 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
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