User`s guide

Programming with VISA 3
Agilent VISA User’s Guide 61
VI_ATTR_STATUS Specifies the status of the read
operation from the USB interrupt-IN
pipe. If the device sent more data
than the user specified in
VI_ATTR_USB_MAX_INTR_SIZE,
then this attribute value will contain
an error code.
RO ViStatus N/A
Table 16 Instrument Control (INSTR) Resource Events
Table 17 Memory Access (MEMACC) Resource Event
VI_EVENT_IO_COMPLETION
Notification that an asynchronous operation has completed
Event Attribute Description AP Data Type Range
VI_ATTR_EVENT_TYPE Unique logical identifier of the
event.
RO ViEventType VI_EVENT_IO_COMPLETION
VI_ATTR_STATUS Return code of the asynchronous
I/O operation that has completed.
RO ViStatus N/A
VI_ATTR_JOB_ID Job ID of the asynchronous
operation that has completed.
RO ViJobId N/A
VI_ATTR_BUFFER Address of a buffer that was used in
an asynchronous operation.
RO ViBuf N/A
VI_ATTR_RET_COUNT Actual number of elements that
were asynchronously transferred.
RO ViUInt32 0 to FFFFFFFF
h
VI_ATTR_OPER_NAME Name of the operation generating
the event.
RO ViString N/A