Specifications

IOC_STD$INITIATE, 6–1
IOC_STD$PRIMITIVE_REQCHANL, 6–2
IOC_STD$REQCOM, 6–18–3
$IODEF macro, 4–6
IOFORK macro, 7–2, 8–1
IOSB (I/O status block), 8–2
IPL$_IOPOST, 8–3
IPL$_MAILBOX, 8–6
IPL$_POWER, 6–3, 6–4
IPL$_TIMERFORK, 8–3, 8–4
IPL (interrupt priority level), 1–6
IRP$L_BCNT, 6–2
writing, 5–8
IRP$L_BOFF, 5–8
IRP$L_MEDIA, 8–3
IRP$L_STS
for read function, 5–8
IRP$L_SVAPTE, 6–2
for buffered I/O, 5–8, 5–9
IRP$V_FUNC, 5–8, 5–9
IRP$W_BOFF, 6–2
IRP$W_FUNC, 6–3
IRP$W_STS
for read function, 5–9
for write function, 5–9
IRP (I/O request packet), 1–6
copying to UCB, 6–2
insertion in pending-I/O queue, 6–1
removal from pending I/O queue, 8–3
J
JIB$L_BYTCNT, 5–8
Job attached bit
See UCB$V_JOB
K
Kernel stack, 6–1
L
Linking, 9–1 to 9–5
Local processor, 1–6
LRDRIVER, B–1 to B–22
M
Mailbox
of OPCOM process, 8–6
Mailboxes
See Hardware I/O mailboxes
Map registers
allocating, 3–1 to 3–6
loading, 3–5
releasing, 8–2
Modify function
FDT routine for, 5–4
Mount verification routine
address, 4–4
MSG$_DEVOFFLIN, 8–6
O
OPCOM process
sending a message to, 8–6
P
PCB$L_JIB, 5–8
Pending-I/O queue, 6–1
PIO transfer, 1–9
using buffered I/O in, 4–5
Postprocessing
See I/O postprocessing
Power bit
See UCB$V_POWER
Power failure
determining the occurrence of, 6–3
Power failure recovery procedure
device timeout forced by, 8–4
Process context, 1–7, 5–2
Process quota
byte count, 5–8
Psects
See Program sections
R
Read function
FDT routine for, 5–4
Register dumping routine
address, 4–3
Register-dumping routine, 1–3
Registers
See Device registers
RELCHAN macro, 8–2
REQCHAN macro, 6–2
REQCOM macro, 8–3
Retry count, 8–5
S
Seek operation, 6–4
overlapping with data transfer, 6–2
Sense device characteristics function, 5–4
Sense device mode function, 5–4
Set device characteristics function, 5–4
Set device mode function, 5–4
SET PREFIX command
in System Management utility (SYSMAN),
10–8
Index–4