autopush(1M)                     UNIX System V                     autopush(1M)


NAME
      autopush - configure lists of automatically pushed STREAMS modules

SYNOPSIS
      autopush -f file
      autopush -r -M major -m minor
      autopush -g -M major -m minor

DESCRIPTION
      This command allows one to configure the list of modules to be
      automatically pushed onto the stream when a device is opened.  It can
      also be used to remove a previous setting or get information on a
      setting.

      The following options apply to autopush:

      -f    This option sets up the autopush configuration for each driver
            according to the information stored in the specified file.  An
            autopush file consists of lines of at least four fields each where
            the fields are separated by a space as shown below:

            maj_  min_  last_min_  mod1 mod2 ... modn

      The first three fields are integers that specify the major device number,
      minor device number, and last minor device number.  The fields following
      represent the names of modules.  If min_ is -1, then all minor devices of
      a major driver specified by maj_ are configured and the value for
      last_min_ is ignored.  If last_min_ is 0, then only a single minor device
      is configured.  To configure a range of minor devices for a particular
      major, min_ must be less than last_min_.

      The last fields of a line in the autopush file represent the list of
      module names where each is separated by a space.  The maximum number of
      modules that can be automatically pushed on a stream is defined to be
      eight.  The modules are pushed in the order they are specified.  Comment
      lines start with a # sign.

      -r    This option removes the previous configuration setting of the
            particular major and minor device number specified with the -M and
            -m options respectively.  If the values of major and minor
            correspond to a setting of a range of minor devices, where minor
            matches the first minor device number in the range, the
            configuration would be removed for the entire range.

      -g    This option gets the current configuration setting of a particular
            major and minor device number specified with the -M and -m options
            respectively.  It will also return the starting minor device number
            if the request corresponds to a setting of a range (as described
            with the -f option).





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autopush(1M)                     UNIX System V                     autopush(1M)


SEE ALSO
      streamio(7)
      Programmer's Guide: STREAMS



















































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