The following example uses FindConfigDev() to print out information about
all of the configured expansion peripherals in the system.
FindConfigDev() searches the system's list of ConfigDev structures and
returns a pointer to the ConfigDev structure matching a specified board:

    newconfigdev = struct ConfigDev *
                       FindConfigDev( struct ConfigDev *oldconfigdev,
                                      LONG manufacturer, LONG product )

The oldconfigdev argument may be set to NULL to begin searching at the top
of the system list or, if it points to a valid ConfigDev, searching will
begin after that entry in the system list.  The manufacturer and product
arguments can be set to search for a specific manufacturer and product by
number, or, if these are set to -1, the function will match any board.

     findboards.c