BUS_RESCAN(9)          FreeBSD Kernel Developer's Manual         BUS_RESCAN(9)

NAME
     BUS_RESCAN - rescan a bus checking for devices that have been added or
     removed

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

     void
     BUS_RESCAN(device_t dev);

DESCRIPTION
     The BUS_RESCAN() method is called to request a rescan of the child
     devices on a bus device.  The method should add any devices that have
     been added since the previous scan and remove devices that have been
     removed.  This method is not required to re-examine existing devices to
     determine if their properties have changed.  This method is also not
     required to propagate the rescan request to child devices.

SEE ALSO
     device(9)

FreeBSD 13.1-RELEASE-p6         April 27, 2016         FreeBSD 13.1-RELEASE-p6