csi_ucan(3)                         CLIX                         csi_ucan(3)



  NAME

    csi_ucan - Cancels unsolicited status requests on a Command Status
    Interface (CSI) port

  LIBRARY

    Intergraph Device Library (libix.a)

  SYNOPSIS

    #include <sys/xio/xerr.h>

    int csi_ucan(
      int channel );

  PARAMETERS

    channel   An integer representing a Command Status Interface channel

  DESCRIPTION

    The csi_ucan() function terminates all pending unsolicited status requests
    associated with the calling process on the Command Status Interface (CSI)
    port of the Image System Interface (ISI) board referenced by channel.  The
    channel must have been opened with csi_open().

  RETURN VALUES

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

  ERRORS

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

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

    [ISI_CHANNEL_NOT_OPEN]
           The specified channel is not open for this process.

  RELATED INFORMATION

    Functions:  csi_open(3), csi_ustat(3)

    Files:  xcsi(7)






  2/94 - Intergraph Corporation                                              1