NAME

     devclass_get_maxunit — find the maximum unit number in the class

SYNOPSIS

     #include <sys/param.h>
     #include <sys/bus.h>

     int
     devclass_get_maxunit(devclass_t dc);

DESCRIPTION

     Returns the next unit number to be allocated to device instances in the devclass.  This is
     one greater than the highest currently allocated unit.

RETURN VALUES

     The devclass_get_maxunit() function returns -1 if dc is NULL, otherwise it returns the next
     unit number in dc's devclass.

ERRORS

     None.

SEE ALSO

     devclass(9), device(9)

AUTHORS

     This manual page was written by Doug Rabson.

BUGS

     The name is confusing since it is one greater than the maximum unit.