device_find_child
—
search for a child of a device
#include
<sys/param.h>
#include <sys/bus.h>
device_t
device_find_child
(device_t
dev, const char
*classname, int
unit);
This function looks for a specific child of
dev
with the given classname
and unit. If unit is -1, it
returns the first child of dev with a matching
classname (that is, the one with the lowest unit).
If it exists, the child device is returned, otherwise NULL.
This manual page was written by Doug
Rabson.