HP UX 11i v1 I/O Cards manual

	ZCOM C I/F Library Routines
	ZCONFIG (3X)
Terminal	There are 5 terminal configuration actions. They are for altering various
Configuration	internal linkages and terminal tables in the ZCOM runtime system
	memory.
	Action ZcDSC_CREATE_LTT_PTT (1) creates a simple terminal that has
	one Logical Terminal Table (LTT) and one Physical Terminal Table
	(PTT).
NOTE	For this new ZCOM terminal, zconfig() allocates data structures in the
	kernel for ZCOM drivers to access. However, related data structures for
	this terminal must also be allocated on the target ACC card to complete
	the task. To allocate the related firmware data structures, use zcntl()
	with the ZCOM_MRQCODE_TERM rcode value (see the zcntl(3X) man
	page).
	Action ZcDSC_CREATE_LTT_ON_PTT (2) creates and links an LTT to
	an existing terminal. The newly created LTT becomes an inbound
	multiplexing terminal and bit ZCOM_LTFLAG_IMX of field “ltaddr” is
	set automatically.
	Action ZcDSC_CLEAR_TERM (3) clears a terminal for deletion. It
	flushes data buffers and removes the receivers of a terminal. It is usually
	used to prepare a terminal for deletion. Note that a terminal must be
	disabled before it can be cleared.
	Action ZcDSC_DELETE_TERM (4) removes a terminal and releases its
	table space to the free pool. If a terminal has multiple LTTs linked to it,
	only the LTT is removed, the PTT is untouched. Otherwise, both the LTT
	and PTT are removed. If the PTT is to be removed, it must be disabled
	and have no pending or active I/O requests. Action
	ZcDSC_CLEAR_TERM is designed to “clear” a terminal for deletion.
	Action ZcDSC_MOVE_TERM (5) is to re-link a terminal to a different
	port, on the same or different interface cards. After moving the terminal
	entry, the terminal must be re-configured, enabled and activated (i.e.
	ZCNTL request 6, 7 and 9) before it can be re-used. A terminal must be
	disabled and have no active I/O requests before it can be moved.

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