Linux-GPIB 4.3.6 Documentation
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ibrsc

Name

ibrsc -- request system control (board)

Synopsis

#include <gpib/ib.h>

int ibrsc(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.

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