Specifications

Operating System Routines
EXE$INSIOQ, EXE$INSIOQC
Description
EXE$INSIOQ and EXE$INSIOQC increment UCB$W_QLEN and proceed
according to the status of the device (as indicated by UCB$V_BSY in UCB$W_
STS) as follows:
• If the device is busy, call EXE$INSERTIRP to place the IRP on the device’s
pending-I/O queue.
• If the device is idle, call IOC$INITIATE to begin device processing of the
I/O request immediately. IOC$INITIATE transfers control to the driver’s
start-I/O routine.
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