User`s guide

cliv Contents
The OEM Auxiliary Device Query Reply
The OEM Auxiliary Device Query Reply format is as follows:
Table D-9. OEM Auxiliary Device Base Format with Direct Access SDP
Offset Length Content Meaning
0 1 word 0x001A Length of structure (includes SDPs)
2 1 byte 0x81 Query Reply ID
3 1 byte 0x8F OEM Query Reply
4-5 2 bytes FLAGS Reserved
6-13 4 words DTYPE Device Type
14-21 4 words UNAME User assigned name
22 1 byte 0x04 Parameter Length
23 1 byte 0x01 Direct Access
24-25 1 word DOID Destination/Origin ID assigned by the
subsystem
See the IBM 3270 Information Display System Data Stream Programmer’s Reference for the field
definitions for this query reply.
The OEM auxiliary device processor supports two Self-Defining Parameters, 01 and 03. These are
defined in Table D-10.
Direct Access Self-Defining Parameter
This self-defining parameter provides the ID for use in the destination/origin structured field in the
direct access of the OEM auxiliary device.
This SDP is always required to accompany the base query reply.
Table D-10. OEM Auxiliary Device Direct Access SDP
Offset Length Content Meaning
0 1 byte 0x04 Parameter Length
1 1 byte 0x01 Direct Access ID
2-3 2 bytes DOID Destination/Origin ID
DOID: The value in these bytes is used in the ID field of the destination/origin structured field to
identify the auxiliary device as the destination or origin of the data which follows.
PCLK Protocol Controls Self-Defining Parameter
The presence of the PCLK Protocol Controls self-defining parameter indicates that the PCLK Protocol
Controls structured field, ID = 0x1013, can be used both inbound and outbound in data streams
destined to or from the IBM auxiliary device processor.
Table D-ll. OEM Auxiliary Device PCLK SDP
Offset Length Content Meaning
0 1 byte 0x04 Parameter Length
1 1 byte 0x03 PCLK Protocol Controls