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NAME

     DEVICE_DETACH -- detach a device

SYNOPSIS

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

     int
     DEVICE_DETACH(device_t dev);

DESCRIPTION

     Detach a device.  This can be called if the user is replacing the driver
     software or if a device is about to be physically removed from the system
     (e.g. for pccard(4) devices).

     The method should deallocate any system resources allocated during the
     DEVICE_ATTACH(9) method and reset the hardware to a sane state (i.e.,
     disable interrupts etc.)

RETURN VALUES

     Zero is returned on success, otherwise an appropriate error is returned.

SEE ALSO

     pccard(4), device(9), DEVICE_ATTACH(9), DEVICE_IDENTIFY(9),
     DEVICE_PROBE(9), DEVICE_SHUTDOWN(9)

AUTHORS

     This manual page was written by Doug Rabson.