From 4eebf565272fc22fc5ad7eb4ecebafbbe6aa5ede Mon Sep 17 00:00:00 2001
From: Warner Losh <imp@FreeBSD.org>
Date: Fri, 5 Mar 2004 22:21:18 +0000
Subject: [PATCH] Add warning about loading/unloading drivers and identify

---
 share/man/man9/DEVICE_IDENTIFY.9 | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/share/man/man9/DEVICE_IDENTIFY.9 b/share/man/man9/DEVICE_IDENTIFY.9
index db36c0b34ab..04802ced106 100644
--- a/share/man/man9/DEVICE_IDENTIFY.9
+++ b/share/man/man9/DEVICE_IDENTIFY.9
@@ -54,6 +54,13 @@ with the kernel by calling
 for each resource (refer to
 .Xr bus_set_resource 9
 for more information).
+.Pp
+Since the device tree and the device driver tree are disjoint, the
+.Nm
+routine needs to take this into account.
+If you load and unload your device driver that has the identify
+routine, the child node has the potential for adding the same node
+multiple times.
 .Sh EXAMPLES
 The following pseudo-code shows an example of a function that
 probes for a piece of hardware and registers it and its resource