devclass_get_maxunit — find the maximum unit number in the class

       This manual page was written by Doug Rabson.

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

Debian                                         September 10, 2010                        DEVCLASS_GET_MAXUNIT(9)

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

       None.

       devclass_get_maxunit — find the maximum unit number in the class

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

devclass(9), device(9)

#include<sys/param.h>#include<sys/bus.h>intdevclass_get_maxunit(devclass_tdc);