DEVICE_DETACH.9

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.Dd June 16, 1998
.Dt DEVICE_DETACH 9
.Os
.Sh NAME
.Nm DEVICE_DETACH
.Nd detach a device
.Sh SYNOPSIS
.In sys/param.h
.In sys/bus.h
.Ft int
.Fn DEVICE_DETACH "device_t dev"
.Sh 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
.Xr pccard 4
devices).
.Pp
The method should deallocate any system resources allocated during the
.Xr DEVICE_ATTACH 9
method and reset the hardware to a sane state (i.e., disable interrupts
etc.)
.Sh RETURN VALUES
Zero is returned on success, otherwise an appropriate error is returned.
.Sh SEE ALSO
.Xr pccard 4 ,
.Xr device 9 ,
.Xr DEVICE_ATTACH 9 ,
.Xr DEVICE_IDENTIFY 9 ,
.Xr DEVICE_PROBE 9 ,
.Xr DEVICE_SHUTDOWN 9
.Sh AUTHORS
This manual page was written by
.An Doug Rabson .