aux_cancel(3)                       CLIX                       aux_cancel(3)



  NAME

    aux_cancel - Cancels an outstanding read on a serial port

  LIBRARY

    Intergraph Device Library (libix.a)

  SYNOPSIS

    #include <sys/xio/xerr.h>

    int aux_cancel(
      int port );

  PARAMETERS

    port   An integer representing a serial port

  DESCRIPTION

    The aux_cancel() function cancels the outstanding read on the specified
    serial port.  The port must have been opened by aux_open().

    Outstanding writes cannot be canceled.

  RETURN VALUES

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

  ERRORS

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

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

    [AUX_PORT_NOT_OPEN]
           The specified port is not open by the calling process.

  RELATED INFORMATION

    Functions:  aux_open(3), aux_read(3), aux_rawrd(3).

    Files:  xaux(7)







  2/94 - Intergraph Corporation                                              1