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IBDEV

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
COPYRIGHT

NAME

ibdev - open a device (device)

SYNOPSIS

#include <gpib/ib.h>

int ibdev(int board_index , int pad , int sad , int timeout , int send_eoi , int eos );

DESCRIPTION

ibdev() is used to obtain a device descriptor, which can then be used by other functions in the library. The argument board_index specifies which GPIB interface board the device is connected to. The pad and sad arguments specify the GPIB address of the device to be opened (see ibpad() and ibsad()). The timeout for io operations is specified by
timeout (see ibtmo()). If send_eoi is nonzero, then the EOI line will be asserted with the last byte sent during writes (see ibeot()). Finally, the eos argument specifies the end-of-string character and whether or not its reception should terminate reads (see ibeos()). To suppress error messages printed to stderr by ibdev() set the environment variable IB_NO_ERROR before calling the routine.

RETURN VALUE

If sucessful, returns a (non-negative) device descriptor. On failure, -1 is returned.