Data Structures for Drivers                       module_info(9S)

NAME
     module_info - STREAMS driver identification and limit  value
     structure

SYNOPSIS
     #include <sys/stream.h>

INTERFACE LEVEL
     Architecture independent level 1 (DDI/DKI).

DESCRIPTION
     When a module or driver is declared, several  identification
     and  limit values can be set. These values are stored in the
     module_info structure.

     The  module_info structure is intended to be read-only. How-
     ever,  the flow control limits ( mi_hiwat and  mi_lowat) and
     the packet size  limits  (  mi_minpsz  and   mi_maxpsz)  are
     copied to the  QUEUE structure, where they may be modified.

STRUCTURE MEMBERS
     ushort_t      mi_idnum;      /* module ID number */
     char          *mi_idname;    /* module name */
     ssize_t       mi_minpsz;     /* maximum packet size */
     size_t        mi_hiwat;      /* high water mark */
     size_t        mi_lowat;      /* low water mark */

     The constant  FMNAMESZ, limiting the length  of  a  module's
     name, is set to eight in this release.

SEE ALSO
     queue(9S)

     STREAMS Programming Guide

SunOS 5.8           Last change: 14 Nov 1996                    1