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Mention how to ensure that a device hasn't already been identified

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This commit is contained in:
Brian Somers 2005-08-09 11:14:21 +00:00
parent b47668b3ec
commit 893446fe00
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=148889
1 changed files with 6 additions and 2 deletions
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8
share/man/man9/device_add_child.9
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@ -96,8 +96,10 @@ is used, then the new child will be added as if its order was zero.
.Pp
When adding a device in the context of
.Xr DEVICE_IDENTIFY 9
routine, some care must be taken to ensure that the device has not
already been added to the tree.
routine, the
.Xr device_find_children 9
routine should be used to ensure that the device has not already been
added to the tree.
Because the device name and
.Vt devclass_t
are associated at probe time (not child addition time), previous
@ -109,7 +111,9 @@ devices.
.Sh RETURN VALUES
The new device if successful, NULL otherwise.
.Sh SEE ALSO
.Xr DEVICE_IDENTIFY 9
.Xr device 9
.Xr device_find_children 9
.Sh AUTHORS
This manual page was written by
.An Doug Rabson .