autopush(1M)      MISC. REFERENCE MANUAL PAGES       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 config-
          ured  and  the  value  for  last_min_  is  ignored.  If
          last_min_ is 0, then only a single minor device is con-
          figured.   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 speci-
          fied 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



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autopush(1M)      MISC. REFERENCE MANUAL PAGES       autopush(1M)



          the -f option).

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


















































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