Provided by: freebsd-manpages_8.2-1_all
device_find_child -- search for a child of a device
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.