Yocto slides improvements

slides/yocto-image/yocto-image.tex

@@ -167,8 +167,10 @@ \subsection{Image types}
 IMAGE_FSTYPES = "wic.bmap wic"
         \end{minted}
       \end{block}
-    \item Note: \code{bmaptool} is an alternative to \code{dd},
-      skipping uninitialized contents in partitions.
+    \item Note:
+      \href{https://docs.yoctoproject.org/dev-manual/bmaptool.html}{bmaptool} is
+      an alternative to \code{dd}, skipping uninitialized contents in
+      partitions.
   \end{itemize}
 \end{frame}
 

slides/yocto-recipe-advanced/yocto-recipe-advanced.tex

@@ -119,36 +119,45 @@ \subsection{Classes}
     \item Any metadata and task which can be put in a recipe can be
           used in a class.
     \item Classes extension is \code{.bbclass}
-    \item Classes are located in the \code{classes-recipe},
+    \item Classes must be located in the \code{classes-recipe},
       \code{classes-global}, or \code{classes} folders of a layer.
-    \item Recipes can use this common code by inheriting a class:
+  \end{itemize}
+\end{frame}
+
+\begin{frame}
+  \frametitle{Using classes}
+  \begin{itemize}
+    \item Recipes can use the classes located in the \code{classes-recipe}
+      folder:
     \begin{itemize}
-      \item \code{inherit <class>}
+      \item \code{inherit class1 class2 ...}
     \end{itemize}
     \item A recipe can inherit from multiple classes.
+    \item Classes in \code{classes-global} can be inherited from configuration
+      files with \yoctovar{INHERIT}:
+    \begin{itemize}
+      \item \code{INHERIT:append = " class1 class2"}
+    \end{itemize}
+    \item Classes in \code{INHERIT} will be used by every built recipe.
+    \item Classes in the \code{classes} folder can be used with \code{inherit} or
+      \yoctovar{INHERIT}, as their usage is not clearly defined.
   \end{itemize}
 \end{frame}
 
 \begin{frame}
   \frametitle{Common classes}
   \begin{itemize}
-    \item Most classes are split into scope-specific subdirectories:
-      \code{meta/classes-recipe/}, \code{meta/classes-global/}
-    \item Classes whose usage context is not clearly defined can be found in
-      \code{meta/classes/}
-    \begin{itemize}
-      \item \code{classes-global/base.bbclass}
-      \item \code{classes-recipe/kernel.bbclass}
-      \item \code{classes-recipe/autotools.bbclass}
-      \item \code{classes-recipe/autotools-brokensep.bbclass}
-      \item \code{classes-recipe/cmake.bbclass}
-      \item \code{classes-recipe/meson.bbclass}
-      \item \code{classes-recipe/native.bbclass}
-      \item \code{classes-recipe/systemd.bbclass}
-      \item \code{classes-recipe/update-rc.d.bbclass}
-      \item \code{classes/useradd.bbclass}
-      \item \dots
-    \end{itemize}
+    \item \href{https://docs.yoctoproject.org/ref-manual/classes.html\#base}{classes-global/base.bbclass}
+    \item \href{https://docs.yoctoproject.org/ref-manual/classes.html\#kernel}{classes-recipe/kernel.bbclass}
+    \item \href{https://docs.yoctoproject.org/ref-manual/classes.html\#autotools}{classes-recipe/autotools.bbclass}
+    \item \href{https://docs.yoctoproject.org/ref-manual/classes.html\#autotools}{classes-recipe/autotools-brokensep.bbclass}
+    \item \href{https://docs.yoctoproject.org/ref-manual/classes.html\#cmake}{classes-recipe/cmake.bbclass}
+    \item \href{https://docs.yoctoproject.org/ref-manual/classes.html\#meson}{classes-recipe/meson.bbclass}
+    \item \href{https://docs.yoctoproject.org/ref-manual/classes.html\#native}{classes-recipe/native.bbclass}
+    \item \href{https://docs.yoctoproject.org/ref-manual/classes.html\#systemd}{classes-recipe/systemd.bbclass}
+    \item \href{https://docs.yoctoproject.org/ref-manual/classes.html\#update-rc-d}{classes-recipe/update-rc.d.bbclass}
+    \item \href{https://docs.yoctoproject.org/ref-manual/classes.html\#useradd}{classes/useradd.bbclass}
+    \item \dots
   \end{itemize}
 \end{frame}
 
@@ -330,7 +339,8 @@ \subsection{BitBake file inclusions}
     \item To inherit the functionalities of the \code{kernel} class,
       use: \code{inherit kernel}
     \item \code{inherit} looks for files ending in \code{.bbclass}, in
-      \code{classes} directories found in \yoctovar{BBPATH}.
+      \code{classes}, \code{classes-recipe} or \code{classes-global} directories
+      found in \yoctovar{BBPATH}.
     \item It is possible to include a class conditionally using a
       variable: \code{inherit ${FOO}}
     \item Inheriting in configuration files is based on the \yoctovar{INHERIT}

slides/yocto-recipe-extra/yocto-recipe-extra.tex

@@ -276,8 +276,8 @@ \subsection{Packages features}
     \item In a \code{.bbappend} of the recipe, just append to \yoctovar{PACKAGECONFIG}
       \begin{block}{}
         \begin{minted}{sh}
-PACKAGECONFIG:append = " <feature>"
-PACKAGECONFIG:append = " tui"
+PACKAGECONFIG += "<feature>"
+PACKAGECONFIG += "tui"
         \end{minted}
       \end{block}