[FE training-materials-updates] Instruct to use Linux 3.0 for this lab

[Michael Opdenacker]

Repository : git://git.free-electrons.com/training-materials.git

On branch  : master
Link       : http://git.free-electrons.com/training-materials/commit/?id=c80de3d7acc8dfb37a1b671c08acf0b314006154

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commit c80de3d7acc8dfb37a1b671c08acf0b314006154
Author: Michael Opdenacker <michael.opdenacker at free-electrons.com>
Date:   Fri Nov 16 13:03:21 2012 +0100

    Instruct to use Linux 3.0 for this lab
    
    Linux 3.6 not fully tested with this lab yet.


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c80de3d7acc8dfb37a1b671c08acf0b314006154
 labs/kernel-serial-driver/kernel-serial-driver.tex |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/labs/kernel-serial-driver/kernel-serial-driver.tex b/labs/kernel-serial-driver/kernel-serial-driver.tex
index cc08f45..a4cd390 100644
--- a/labs/kernel-serial-driver/kernel-serial-driver.tex
+++ b/labs/kernel-serial-driver/kernel-serial-driver.tex
@@ -20,6 +20,11 @@ this lab. Re-use the setup instructions of the lab on {\em Character
 Device Drivers} to get a kernel without the serial port driver and
 with {\em Network Console support}.
 
+For this lab, we advise you to work with Linux 3.0, as this lab and the
+solution that we will provide have been tested with this version.
+
+Therefore, you should download the Linux 3.0 sources.
+
 \section{Basic module}
 
 The serial core cannot be compiled inside the kernel without an