Name

ibrsc — request system control (board)

Synopsis

#include <gpib/ib.h>
int ibrsc(ud,  
 request_control); 
int ud;
int request_control;
 

Description

If request_control is nonzero, then the board specified by the board descriptor ud is made system controller. If request_control is zero, then the board releases system control.

The system controller has the ability to assert the REN and IFC lines, and is typically also the controller-in-charge. A GPIB bus may not have more than one system controller.

Return value

The value of ibsta is returned.