/share/man/man9/DEVICE_ATTACH.9

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29.\" $FreeBSD$
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31.Dd January 6, 2005
32.Dt DEVICE_ATTACH 9
33.Os
34.Sh NAME
35.Nm DEVICE_ATTACH
36.Nd attach a device
37.Sh SYNOPSIS
38.In sys/param.h
39.In sys/bus.h
40.Ft int
41.Fn DEVICE_ATTACH "device_t dev"
42.Sh DESCRIPTION
43Attach a device to the system after the
44.Fn DEVICE_PROBE
45method has been called and has indicated that
46the device exists.
47The
48.Fn DEVICE_ATTACH
49method should initialize the hardware and allocate other
50system resources (such as
51.Xr devfs 5
52entries).
53.Pp
54Devices which implement busses should use this method to probe for
55the existence of devices attached to the bus and add them as
56children.
57If this is combined with the use of
58.Xr bus_generic_attach 9
59the child devices will be automatically probed and attached.
60.Sh RETURN VALUES
61Zero is returned on success, otherwise an appropriate error is returned.
62.Sh SEE ALSO
63.Xr devfs 5 ,
64.Xr device 9 ,
65.Xr DEVICE_DETACH 9 ,
66.Xr DEVICE_IDENTIFY 9 ,
67.Xr DEVICE_PROBE 9 ,
68.Xr DEVICE_SHUTDOWN 9
69.Sh AUTHORS
70This manual page was written by
71.An Doug Rabson Aq dfr@FreeBSD.org .