Asynchronous Serial Communications Programmer's Reference Manual (32022-90052)

Chapter 9 237
Intrinsics Reference (cont)
FGETINFO
=11 Shared access.
Bit (7:1)—Inhibit buffering
aoption
Not meaningful for asynchronous devices.
Bit (5:2)—Multiaccess mode
aoption
Not meaningful for asynchronous devices.
Bit (4:1)—NOWAIT I/O
aoption
Indicates whether or not NOWAIT I/O has been
specified for the file.NOWAIT I/O allows the accessor to
initiate an I/O request and to have control returned
before the completion of the request.
=0 NOWAIT I/O not in effect.
=1 NOWAIT I/O in effect.
Bits (3:1)—File copy access aoption
Specifies whether or not a file may be treated as a
standard sequential file rather than as a file of its own
type.
=0 File must be accessed as its own type.
=1 File may be accessed as standard
sequential file.
Bits (0:3)—Reserved for MPE/iX.
Table 9-2 Access Types
lrecsize 16-bit signed integer by reference
(optional)
Access Types Value Used with a Terminal Used with a Printer
Read only 0000 OK. Returns File System Error 40:
Operation Inconsistent with
Access type.
Write only
(Write/Delete)
0001 OK. OK.
Write (save) only 0010 OK. Executed as Write only.
Append only 0011 OK. Executed as Write only.
Read/Write 0100 OK. Executed as Write only.
Update 0101 OK. Executed as Write only.
Execute 0110 Returns File System Error 40:
Operation Inconsistent with
Access type.
Returns File System Error 40:
Operation Inconsistent with
Access type.