[bootlin/training-materials updates] master: kernel: move sysfs slide at the beginning (b43dabbe)

[Clément Léger]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/b43dabbeda054cbb0711ac5ab3a8bfc5e9a3e709

>---------------------------------------------------------------

commit b43dabbeda054cbb0711ac5ab3a8bfc5e9a3e709
Author: Clément Léger <clement.leger at bootlin.com>
Date:   Tue Jan 25 12:05:41 2022 +0100

    kernel: move sysfs slide at the beginning
    
    Since the first 3 slides introduce drivers, device and bus, the sysfs
    view of the device model makes sense to be explained here.
    
    Signed-off-by: Clément Léger <clement.leger at bootlin.com>


>---------------------------------------------------------------

b43dabbeda054cbb0711ac5ab3a8bfc5e9a3e709
 slides/kernel-device-model/kernel-device-model.tex | 42 +++++++++++-----------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/slides/kernel-device-model/kernel-device-model.tex b/slides/kernel-device-model/kernel-device-model.tex
index 3e0a2868..54c7c8fc 100644
--- a/slides/kernel-device-model/kernel-device-model.tex
+++ b/slides/kernel-device-model/kernel-device-model.tex
@@ -88,6 +88,27 @@
   \end{itemize}
 \end{frame}
 
+
+\begin{frame}
+  \frametitle{sysfs}
+  \begin{itemize}
+  \item The bus, device, drivers, etc. structures are internal to the
+    kernel
+  \item The \code{sysfs} virtual filesystem offers a mechanism to
+    export such information to user space
+  \item Used for example by \code{udev} to provide automatic module loading,
+    firmware loading, mounting of external media, etc.
+  \item \code{sysfs} is usually mounted in \code{/sys}
+    \begin{itemize}
+    \item \code{/sys/bus/} contains the list of buses
+    \item \code{/sys/devices/} contains the list of devices
+    \item \code{/sys/class} enumerates devices by the framework they are
+          registered to (\code{net}, \code{input}, \code{block}...),
+          whatever bus they are connected to. Very useful!
+    \end{itemize}
+  \end{itemize}
+\end{frame}
+
 \subsection{Example of the USB bus}
 
 \begin{frame}
@@ -963,27 +984,6 @@ examples:
   \end{itemize}
 \end{frame}
 
-\begin{frame}
-  \frametitle{sysfs}
-  \begin{itemize}
-  \item The bus, device, drivers, etc. structures are internal to the
-    kernel
-  \item The \code{sysfs} virtual filesystem offers a mechanism to
-    export such information to user space
-  \item Used for example by \code{udev} to provide automatic module loading,
-    firmware loading, mounting of external media, etc.
-  \item \code{sysfs} is usually mounted in \code{/sys}
-    \begin{itemize}
-    \item \code{/sys/bus/} contains the list of buses
-    \item \code{/sys/devices/} contains the list of devices
-    \item \code{/sys/class} enumerates devices by the framework they are
-          registered to (\code{net}, \code{input}, \code{block}...),
-          whatever bus they are connected to. Very useful!
-    \end{itemize}
-  \item Take your time to explore \code{/sys} on your workstation.
-  \end{itemize}
-\end{frame}
-
 \begin{frame}
   \frametitle{References}
   \begin{columns}