Device definition list

The device definition list part of the open feedback area is an array structure. Each entry in the array contains information about each device or communications session attached to the file. The number of entries in this array is determined by the number at offset 146 of the open feedback area.

The device definition list begins at offset 148 of the open feedback area. The offsets shown for it are from the start of the device definition list rather than the start of the open feedback area.

Table 1. Device definition list
Offset Data Type Length Contents File Type
0 Character 10 Program device name. For database files, the value is DATABASE. For printer or diskette files being spooled, the value is *N. For save files, the value is *NONE. For ICF files, the value is the name of the program device from the ADDICFDEVE or OVRICFDEVE command. For all other files, the value is the name of the device description. All, except inline data
10 Character 50 Reserved.  
60 Character 10 Device description name. For printer or diskette files being spooled, the value is *N. For save files, the value is *NONE. For all other files, the value is the name of the device description. All, except database and inline data
70 Character 1 Device class.
hex 01
Display
hex 02
Printer
hex 04
Diskette
hex 05
Tape
hex 09
Save
hex 0B
ICF
 All, except database and inline data
71 Character 1 Device type.
hex 02
5256 Printer
hex 07
5251 Display Station
hex 08
Spooled
hex 0A
BSCEL
hex 0B
5291 Display Station
hex 0C
5224/5225 printers
hex 0D
5292 Display Station
hex 0E
APPC
hex 0F
5219 Printer
hex 10
5583 Printer (DBCS)
hex 11
5553 Printer
hex 12
5555-B01 Display Station
hex 13
3270 Display Station
hex 14
3270 Printer
hex 15
Graphic-capable device
hex 16
Financial Display Station
hex 17
3180 Display Station
hex 18
Save file
hex 19
3277 DHCF Device
hex 1A
9347 Tape Unit
hex 1B
9348 Tape Unit
hex 1C
9331-1 Diskette Unit
hex 1D
9331-2 Diskette Unit
hex 1E
Intrasystem communications support
hex 1F
Asynchronous communications support
hex 20
SNUF
hex 21
4234 (SCS) Printer
hex 22
3812 (SCS) Printer
hex 23
4214 Printer
hex 24
4224 (IPDS™) Printer
hex 25
4245 Printer
hex 26
3179-2 Display Station
hex 27
3196-A Display Station
hex 28
3196-B Display Station
hex 29
5262 Printer
hex 2A
6346 Tape Unit
hex 2B
2440 Tape Unit
hex 2C
9346 Tape Unit
hex 2D
6331 Diskette Unit
hex 2E
6332 Diskette Unit
hex 30
3812 (IPDS) Printer
hex 31
4234 (IPDS) Printer
hex 32
IPDS printer, model unknown
hex 33
3197-C1 Display Station
hex 34
3197-C2 Display Station
hex 35
3197-D1 Display Station
hex 36
3197-D2 Display Station
hex 37
3197-W1 Display Station
hex 38
3197-W2 Display Station
hex 39
5555-E01 Display Station
hex 3A
3430 Tape Unit
hex 3B
3422 Tape Unit
hex 3C
3480 Tape Unit
hex 3D
3490 Tape Unit
hex 3E
3476-EA Display Station
hex 3F
3477-FG Display Station
  
     
hex 40
3278 DHCF device
hex 41
3279 DHCF device
hex 42
ICF finance device
hex 43
Retail communications device
hex 44
3477-FA Display Station
hex 45
3477-FC Display Station
hex 46
3477-FD Display Station
hex 47
3477-FW Display Station
hex 48
3477-FE Display Station
hex 49
6367 Tape Unit
hex 4A
6347 Tape Unit
hex 4D
Network Virtual Terminal Display Station
hex 4E
6341 Tape Unit
hex 4F
6342 Tape Unit
  
     
hex 50
6133 Diskette Unit
hex 51
5555-C01 Display Station
hex 52
5555-F01 Display Station
hex 53
6366 Tape Unit
hex 54
7208 Tape Unit
hex 55
6252 (SCS) Printer
hex 56
3476-EC Display Station
hex 57
4230 (IPDS) Printer
hex 58
5555-G01 Display Station
hex 59
5555-G02 Display Station
hex 5A
6343 Tape Unit
hex 5B
6348 Tape Unit
hex 5C
6368 Tape Unit
hex 5D
3486-BA Display Station
hex 5F
3487-HA Display Station
hex 60
3487-HG Display Station
hex 61
3487-HW Display Station
hex 62
3487-HC Display Station
hex 63
3935 (IPDS) Printer
hex 64
6344 Tape Unit
hex 65
6349 Tape Unit
hex 66
6369 Tape Unit
hex 67
6380 Tape Unit
hex 68
6378 Tape Unit
hex 69
6390 Tape Unit
hex 70
6379 Tape Unit
hex 71
9331-11 Diskette Unit
hex 72
9331-12 Diskette Unit
hex 73
3570 Tape Unit
hex 74
3590 Tape Unit
hex 75
6335 Tape Unit
  
72 Binary 2 Number of lines on the display screen. Display
74 Binary 2 Number of positions in each line of the display screen. Display
76 Character 2 Bit flags.
Bit 1:
Blinking capability.
0
Display is not capable of blinking.
1
Display is capable of blinking.
Bit 2:
Device location.
0
Local device.
1
Remote device.
Bit 3:
Acquire status. This bit is set even if the device is implicitly acquired at open time.
0
Device is not acquired.
1
Device is acquired.
Bit 4:
Invite status.
0
Device is not invited.
1
Device is invited.
Bit 5:
Data available status (only if device is invited).
0
Data is not available.
1
Data is available.
Bit 6:
Transaction status.
0
Transaction is not started. An evoke request has not been sent, a detach request has been sent or received, or the transaction has completed.
1
Transaction is started. The transaction is active. An evoke request has been sent or received and the transaction has not ended.
Bit 7:
Requester device.
0
Not a requester device.
1
A requester device.
Bit 8:
DBCS device.
0
Device is not capable of processing double-byte data.
1
Device is capable of processing double-byte data.
Bits 9-10:
Reserved.
Bit 11:
DBCS keyboard.
0
Keyboard is not capable of entering double-byte data.
1
Keyboard is capable of entering double-byte data.
Bits 12-16:
Reserved.
 Display
78 Character 1 Synchronization level.
hex 00
The transaction was built with SYNLVL(*NONE). Confirm processing is not allowed.
hex 01
The transaction was built with SYNLVL(*CONFIRM). Confirm processing is allowed.
hex 02
The transaction was built with SYNLVL(*COMMIT).
 ICF
79 Character 1 Conversation type.
hex D0
Basic conversation (CNVTYPE(*USER)).
hex D1
Mapped conversation (CNVTYPE(*SYS)).
 ICF
80 Character 50 Reserved.  
Parent topic: Open feedback area