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/share/man/man9/DEVICE_DETACH.9

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 3.\" Copyright (c) 1998 Doug Rabson
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29.\" $FreeBSD$
30.\"
31.Dd June 16, 1998
32.Dt DEVICE_DETACH 9
33.Os
34.Sh NAME
35.Nm DEVICE_DETACH
36.Nd detach a device
37.Sh SYNOPSIS
38.In sys/param.h
39.In sys/bus.h
40.Ft int
41.Fn DEVICE_DETACH "device_t dev"
42.Sh DESCRIPTION
43Detach a device.
44This can be called if the user is replacing the
45driver software or if a device is about to be physically removed from
46the system (e.g.\& for
47.Xr pccard 4
48devices).
49.Pp
50The method should deallocate any system resources allocated during the
51.Xr DEVICE_ATTACH 9
52method and reset the hardware to a sane state (i.e., disable interrupts
53etc.)
54.Sh RETURN VALUES
55Zero is returned on success, otherwise an appropriate error is returned.
56.Sh SEE ALSO
57.Xr pccard 4 ,
58.Xr device 9 ,
59.Xr DEVICE_ATTACH 9 ,
60.Xr DEVICE_IDENTIFY 9 ,
61.Xr DEVICE_PROBE 9 ,
62.Xr DEVICE_SHUTDOWN 9
63.Sh AUTHORS
64This manual page was written by
65.An Doug Rabson .