freebsd man page for device_shutdown

DEVICE_SHUTDOWN(9)					   BSD Kernel Developer's Manual					DEVICE_SHUTDOWN(9)

NAME
     DEVICE_SHUTDOWN -- called during system shutdown

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

     int
     DEVICE_SHUTDOWN(device_t dev);

DESCRIPTION
     The DEVICE_SHUTDOWN() method is called during system shutdown to allow the driver to put the hardware into a consistent state for rebooting
     the computer.

RETURN VALUES
     Zero is returned on success, otherwise an error is returned.

SEE ALSO
     device(9), DEVICE_ATTACH(9), DEVICE_DETACH(9), DEVICE_IDENTIFY(9), DEVICE_PROBE(9)

AUTHORS
     This manual page was written by Doug Rabson.

BSD
								  January 6, 2005							       BSD