From d6d81b7386537a6117c5bb01c6ba04d34d738d51 Mon Sep 17 00:00:00 2001
From: Marius Strobl <marius@FreeBSD.org>
Date: Fri, 14 May 2010 20:11:30 +0000
Subject: [PATCH] Document the led(4) interface to the identification LEDs.

MFC after:	3 days
---
 share/man/man4/em.4  | 22 +++++++++++++++++++++-
 share/man/man4/igb.4 | 22 +++++++++++++++++++++-
 2 files changed, 42 insertions(+), 2 deletions(-)

diff --git a/share/man/man4/em.4 b/share/man/man4/em.4
index fa3982593873..ecde44d6dc40 100644
--- a/share/man/man4/em.4
+++ b/share/man/man4/em.4
@@ -31,7 +31,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd October 6, 2008
+.Dd May 14, 2010
 .Dt EM 4
 .Os
 .Sh NAME
@@ -62,6 +62,11 @@ The driver supports Transmit/Receive checksum offload
 and Jumbo Frames on all but 82542-based adapters.
 Furthermore it supports TCP segmentation offload (TSO) on all adapters but
 those based on the 82543, 82544 and 82547 controller chips.
+The identification LEDs of the adapters supported by the
+.Nm
+driver can be controlled via the
+.Xr led 4
+API for localization purposes.
 For further hardware information, see the
 .Pa README
 included with the driver.
@@ -241,10 +246,25 @@ If an issue is identified with the released source code on the supported kernel
 with a supported adapter, email the specific information related to the
 issue to
 .Aq freebsdnic@mailbox.intel.com .
+.Sh FILES
+.Bl -tag -width /dev/led/em*
+.It Pa /dev/led/em*
+identification LED device nodes
+.El
+.Sh EXAMPLES
+Make the identification LED of em0 blink:
+.Pp
+.Dl "echo f2 > /dev/led/em0"
+.Pp
+Turn the identification LED of em0 off again:
+.Pp
+.Dl "echo 0 > /dev/led/em0"
+.Pp
 .Sh SEE ALSO
 .Xr altq 4 ,
 .Xr arp 4 ,
 .Xr igb 4 ,
+.Xr led 4 ,
 .Xr netintro 4 ,
 .Xr ng_ether 4 ,
 .Xr polling 4 ,
diff --git a/share/man/man4/igb.4 b/share/man/man4/igb.4
index 86bcc73b0745..65012d2a980b 100644
--- a/share/man/man4/igb.4
+++ b/share/man/man4/igb.4
@@ -31,7 +31,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd October 6, 2008
+.Dd May 14, 2010
 .Dt IGB 4
 .Os
 .Sh NAME
@@ -60,6 +60,11 @@ The driver supports Transmit/Receive checksum offload and Jumbo
 Frames.
 Furthermore it supports TCP segmentation offload (TSO) on all
 adapters.
+The identification LEDs of the adapters supported by the
+.Nm
+driver can be controlled via the
+.Xr led 4
+API for localization purposes.
 .Pp
 For questions related to hardware requirements, refer to the
 documentation supplied with your Intel PRO/1000 adapter.
@@ -175,10 +180,25 @@ If an issue is identified with the released source code on the supported kernel
 with a supported adapter, email the specific information related to the
 issue to
 .Aq freebsdnic@mailbox.intel.com .
+.Sh FILES
+.Bl -tag -width /dev/led/igb*
+.It Pa /dev/led/igb*
+identification LED device nodes
+.El
+.Sh EXAMPLES
+Make the identification LED of igb0 blink:
+.Pp
+.Dl "echo f2 > /dev/led/igb0"
+.Pp
+Turn the identification LED of igb0 off again:
+.Pp
+.Dl "echo 0 > /dev/led/igb0"
+.Pp
 .Sh SEE ALSO
 .Xr altq 4 ,
 .Xr arp 4 ,
 .Xr em 4 ,
+.Xr led 4 ,
 .Xr netintro 4 ,
 .Xr ng_ether 4 ,
 .Xr polling 4 ,