gpibclose(3)                       CLIX                       gpibclose(3)



  NAME

    gpib_close - Closes a General Purpose Interface Bus (GPIB) channel

  LIBRARY

    Intergraph Device Library (libix.a)

  SYNOPSIS

    #include <sys/xio/xerr.h>

    int gpib_close(
      int channel );

  PARAMETERS

    channel   An integer representing a GPIB channel

  DESCRIPTION

    The gpib_close() function frees the General Purpose Interface Bus (GPIB)
    channel that was previously allocated with gpib_open().  The close cancels
    all outstanding control, transfer, and interrupt requests queued for the
    channel.  Current transfers are also aborted.

  RETURN VALUES

    Upon successful completion, a value of 0 is returned.  Otherwise, one of
    the following failure codes is returned.

  ERRORS

    The gpib_close() function will fail if one of the following is true:

    [XIO_FAILURE]
           The system does not contain the driver needed to support this
           request.

    [GPIB_OUT_OF_RANGE]
           The specified channel is beyond the maximum allowed.

    [GPIB_NOT_OPEN]
           The specified channel is not open.

    [GPIB_NOT_OWNER]
           The specified channel is currently open by another process.

  RELATED INFORMATION

    Functions:  gpib_open(3), gpib_cancel(3)



  2/94 - Intergraph Corporation                                              1

  gpibclose(3)                       CLIX                       gpibclose(3)



    Files: xgpib(7)





















































  2                                              Intergraph Corporation - 2/94