


      CONF(4)                    (Bull-SPS9)                    CONF(4)



      NAME
           Conf - Device Configuration File

      DESCRIPTION
           /ros/conf is the device configuration file which is one of
           the files read at system startup time to automatically
           configure some device boards.  Most Bull-SPS9-supplied
           device drivers are configured using configure(1), using
           /etc/config.  This file remains mostly for historical
           reasons.

           Each board in the system is assigned a unique physical
           address and each type of board has a unique type identifier.
           For example, the FDLP board has a device type equal to 1.

           At system initialization time, all the device types are
           found by reading all the boards in the system.

           Entries in the configuration file contain a device type
           number and an associated device driver program file name.
           Each field is delimited by a ':' and each entry appears on a
           separate line in the following format:

                device type :  file name

                For example:  :1:/drivers/fdlp

           When the system is started, the system reads the types of
           all the installed boards.  With each board's device type,
           the system searches the conf file for an entry of its type.
           If found, the associated file is assumed to be a device
           driver and is loaded and started. There is a one-to-one
           relationship between the boards and the conf entries.  If
           there are multiple boards of the same type, a separate conf
           entry must exist to start a driver for each board.

      EXAMPLE
           The following device boards are present in the system:

           board          qty    type
           FDLP           2      1
           DR-11/Custom Display  160

           file:          :1:/drivers/fdlp
                          :1:/drivers/fdlp
                          :60:/drivers/customdisp


           Drivers corresponding to device type 1 and 60 are loaded.
           Note there are two FDLP boards; two drivers are started.

           With the load enable switch set during bootstraps, the



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      CONF(4)                    (Bull-SPS9)                    CONF(4)



           device types for each device in the system are listed.

           A complete list of the devices types is presented in the
           config(4) pages.



















































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