From 3b2fcb4f13f7aa430a3519ff869564a4a92894df Mon Sep 17 00:00:00 2001
From: Sascha Hlusiak <mail@saschahlusiak.de>
Date: Sat, 15 Sep 2012 00:57:49 +0200
Subject: started feature overview

---
 xf86-input-joystick.tex | 79 +++++++++++++++++++++++++++++++++++--------------
 1 file changed, 57 insertions(+), 22 deletions(-)

diff --git a/xf86-input-joystick.tex b/xf86-input-joystick.tex
index 98473c9..a634b6f 100644
--- a/xf86-input-joystick.tex
+++ b/xf86-input-joystick.tex
@@ -10,7 +10,6 @@
 
 \usepackage{hyperref}
 \usepackage{ngerman}
-\newenvironment{slide}[1]{\begin{frame}[containsverbatim]{#1}}{\end{frame}}
 \usepackage{color}
 \usepackage{listings}
 \usepackage{pgfpages}
@@ -70,23 +69,24 @@
 \section*{Overview}
 \subsection*{Abstract}
 
-\begin{slide}{Abstract}
+\begin{frame}{Abstract}
   \structure{xf86-input-joystick?}
   \begin{itemize}
     \item input module for the X.Org server to handle joystick devices
     \item can emit cursor movement and key events
     \item \textbf{control the cursor with a joystick}
   \end{itemize}
-\end{slide}
+\end{frame}
 
-
-\begin{slide}{Overview}
+\subsection*{Overview}
+\begin{frame}{Overview}
   \tableofcontents
-\end{slide}
+\end{frame}
 
 
 \section{Basics}
-\begin{slide}{joysticks}
+\subsection{joysticks}
+\begin{frame}{joysticks}
   \begin{itemize}
     \item easily 6 or more axes, different types
     \begin{itemize}
@@ -100,17 +100,17 @@
   \begin{center}
     \includegraphics[width=4cm,height=4cm]{pics/logitech_1.png}
   \end{center}
-\end{slide}
+\end{frame}
 
 
-\begin{slide}{why a joystick input module?}
+\begin{frame}{why a joystick input module?}
   \begin{itemize}
-    \item \textbf{xf86-input-evdev} maps directly to mouse/keyboard events
+    \item xorg-server knows pointers and keyboards
+    \item \textbf{xf86-input-evdev} maps directly, a joystick is neither nor
     \item evdev only in Linux
     \item joysticks send absolute axis data \\
       $ \Rightarrow $ direct mapping useless \\
-      $ \Rightarrow $ want smooth, relative cursor movement \\  
-    \item joystick specific event transformation:
+    \item joystick specific event transformation
   \end{itemize}
   \scriptsize \vspace{1cm}
 $$
@@ -137,11 +137,10 @@ $$
   \right )
   }_{\text{X events}}
 $$
+\end{frame}
 
-\end{slide}
-
-
-\begin{slide}{joysticks on kernel level}
+\subsection{kernel level}
+\begin{frame}{joysticks on kernel level}
   \structure{kernel device}
   \begin{itemize}
     \item usually Plug \& Play (USB)
@@ -154,24 +153,60 @@ $$
     \item \texttt{/dev/input/event0} (evdev)
   \end{itemize}
 
-  \structure{FreeBSD}
+  \structure{(Free)BSD}
   \begin{itemize}
     \item \texttt{/dev/input/js0} (linux-js)
     \item \texttt{/dev/uhid0} (usbhid)
   \end{itemize}
 
   $ \Rightarrow $ supported through lightweight abstraction layer
-\end{slide}
+\end{frame}
+
+\section{Feature overview}
+\subsection{mappings}
+\begin{frame}{axis mappings}
+  \structure{form of mapping}
+  \begin{itemize}
+   \item relative (analog)
+   \item accelerated (D-Pad)
+   \item absolute (analog)
+  \end{itemize}
+
+  \structure{sort of mapping}
+  \begin{itemize}
+    \item pointer movement
+    \item scroll event
+    \item key event sequence (e.g. cursor keys)
+  \end{itemize}
+\end{frame}
 
 
+\begin{frame}{button mappings}
+  \begin{itemize}
+    \item pointer click
+    \item pointer movement (accelerated)
+    \item scroll events (accelerated)
+    \item key sequences (e.g. Alt+Tab)
+    \begin{itemize}
+     \item auto repeat applies
+     \item keyboard layout applies
+    \end{itemize}
+    \item disable all events
+  \end{itemize}
+\end{frame}
+
 
-\section{Backends}
+\subsection{hotplugging}
 
-\section{Hotplugging}
+\subsection{properties}
 
-\section{Main Features}
+\section{Technics}
+% keyboard layout unknown, how to provide good mapping with scancodes
+% different auto repeat rates
+% creates two devices, MOUSE and KEYBOARD
+% automatic configuration is problematic
+% dynamic configuration and state change desired
 
-\section{Properties}
 
 \section{Future}
 
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