SSI Function Codes Your Subsystem Can Support

This chapter contains detailed information on function codes your subsystem can support. The following is a list of SSI function codes, along with their purpose and the type of subsystem request.

Function Code	Requested Function	Type of Request
4	End-of-task	Broadcast
8	End-of-address space (End-of-memory)	Broadcast
9	WTO/WTOR	Broadcast
10	Command processing	Broadcast
14	Delete operator message	Broadcast
48	Help Call	Broadcast
50	Early notification of end-of-task	Broadcast
54	Request subsystem version information	Directed
58	SMF SUBPARM option change	Directed
78	Tape device selection	Broadcast

Your subsystem can define and use its own function codes, using the range 236 to 255.