INT 68 - APPC/PCIBM PC - CHANGE LOGICAL UNIT AH = 03h subfn 2A00h DS:DX -> control block (see #03701) Return: control block updated Format of APPC/PCIBM PC "Change Logical Unit" control block: Offset Size Description (Table 03701) 00h 12 BYTEs reserved 0Ch WORD 2A00h (verb "Change Logical Unit") 0Eh 6 BYTEs 00h 14h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. (big-endian) return code (see #03668) 18h WORD 00h 1Ah 8 BYTEs (big-endian) logical unit ID 22h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. pointer to CREATE_TP_EXIT routine 00000000h queue ALLOCATEs FFFFFFFFh reject incoming ALLOCATEs 26h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. 00000000h 2Ah DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. pointer to SYSTEM_LOG_EXIT routine, FFFFFFFFh= don't log errors 2Eh DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. 00000000h 32h BYTE maximum TPs 33h BYTE 00h stop QUEUE_ALLOCATEs 01h resume QUEUE_ALLOCATEs 34h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. pointer to LU_LU_PASSWORD_EXIT routine, FFFFFFFFh = no exit 38h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. 00000000h