Abort asynchronous I/O operation.
unsigned int ibstop (int ud)
ibstop
ud | Board or device descriptor |
Function Return | The value of Ibsta |
The ibstop function aborts any asynchronous read, write, or command operation that is in progress and resynchronizes the application with the driver. If asynchronous I/O is in progress, the error bit is set in the status word, Ibsta, and EABO is returned, indicating that the I/O was successfully stopped.
EABO | Asynchronous I/O was successfully stopped. |
EDVR | The NI-488.2 driver is either configured incorrectly or is not properly installed. |
EHDL | ud is invalid or out of range. |
ELCK | The requested operation could not be performed because of an existing lock by another process. |
ENEB | The interface is not installed or is not properly configured. |