devclass_get_maxunit(9)
find the maximum unit number in the class
SYNOPSIS
In sys/param.h
In sys/bus.h
Ft int
Fn 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
Fn devclass_get_maxunit
function returns -1 if
Fa dc
is
NULL
otherwise it returns the next unit
number in
Fa dc's
devclass.
ERRORS
None.
AUTHORS
This manual page was written by
An Doug Rabson .
BUGS
The name is confusing since it is one greater than the maximum unit.
