)
Values for VINES 3270 interface function number:
 00h "pi2reset"	 reset 3270/SNA or 3270/BSC driver
 02h "pi2bsc"	 (3270/BSC only)
 03h "pi2get"	 get information stored in 3270 resident driver
 04h "pi2put"	 store information in 3270 resident driver
 05h "pi2gcur"	 get current screen position
 07h "pi2sdat"	 send data keystroke
 08h "pi2scom"	 send command keystroke
 0Ah "pi2field"	 get field info for arbitrary screen positions
 0Fh "pi2stat"	 get logical unit/device status
 12h "pi2nlus"	 determine logical unit/device assignment
 13h "pi2gate"	 specifies comm port address to gateway service
 14h "pi2attach" attach a logical unit/device
 15h "pi2sdev"	 save logical unit/device info in resident driver
		(not supported in >3.0)
 16h "pi2gdev"	 get device information (not supported in >3.0)
 17h "pi2luinfo" get info about specific logical unit/device
 18h "pi2gerr"	 get finer error detail
 19h "pi2dhold"	 (3270/SNA only)  holds a 3270 device
 1Ah "pi2shut"	 release memory-resident module
 1Ch "pi2sprof"	 save profile info in res driver (not supp in >3.0)
 1Dh "pi2gprof"	 get prevsly stored profile info (not supp in >3.0)