From: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Date: Sat, 5 Dec 2009 17:05:28 +0000 (-0200)
Subject: Linux interfaces evolution.
X-Git-Url: http://git.cascardo.eti.br/?p=cascardo%2Fkernel%2Fold_slides%2F.git;a=commitdiff_plain;h=9c1064e33b10a9ecb1e60b37e01423fa9f280f87

Linux interfaces evolution.
---

diff --git a/00.intro/00.intro.xml b/00.intro/00.intro.xml
index 6e34fbb..d479935 100644
--- a/00.intro/00.intro.xml
+++ b/00.intro/00.intro.xml
@@ -59,4 +59,18 @@ TODO: introduce a graphic with the number of lines of code.
 </foil>
 -->
 
+<foil>
+<title>Linux evolution</title>
+<para>
+Linux source code and interfaces have changed a lot in all these years. Some
+programs require the sysfs interface, for example. Some drivers may require new
+interfaces and not build on old linux versions. They may also use obsolete or
+replaced unexisting interfaces and not build on new linux versions.
+</para>
+<para>
+Better practice is to release the driver under GPLv2 or other compatible
+license and send it to mainline. And maintain it even after it's there.
+</para>
+</foil>
+
 </slides>