[FE training-materials-updates] Modify fastboot slides to talk a bit more about the commands rather than the protocol

[Maxime Ripard]

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

On branch  : master
Link       : http://git.free-electrons.com/training-materials/commit/?id=b49a84131ac264ae83c62989c6b717cf7d8f606e

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

commit b49a84131ac264ae83c62989c6b717cf7d8f606e
Author: Maxime Ripard <maxime.ripard at free-electrons.com>
Date:   Mon Apr 14 16:06:59 2014 +0200

    Modify fastboot slides to talk a bit more about the commands rather than the protocol
    
    Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>


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

b49a84131ac264ae83c62989c6b717cf7d8f606e
 .../android-bootloaders-fastboot.tex               |   57 ++++++++++----------
 1 file changed, 28 insertions(+), 29 deletions(-)

diff --git a/slides/android-bootloaders-fastboot/android-bootloaders-fastboot.tex b/slides/android-bootloaders-fastboot/android-bootloaders-fastboot.tex
index e3a4216..7818bdf 100644
--- a/slides/android-bootloaders-fastboot/android-bootloaders-fastboot.tex
+++ b/slides/android-bootloaders-fastboot/android-bootloaders-fastboot.tex
@@ -34,47 +34,46 @@
 \end{frame}
 
 \begin{frame}
-  \frametitle{Commands available 1/2}
+  \frametitle{Booting into Fastboot}
   \begin{itemize}
-  \item Vendor-specific commands must begin with an upper-case
-    character. Commands beginning with a lower-case character are reserved
-    for the Fastboot specifications and their evolution
-  \item Commands defined by the Fastboot specifications are:
+  \item On most devices, it's disabled by default (the bootloader
+    won't even implement it)
+  \item On devices that support it, such as Google Nexus', you have
+    several options:
+    \begin{itemize}
+    \item Use a combination of keys at boot to start the bootloader
+      right away into its fastboot mode
+    \item Use the \code{adb reboot bootloader} command on your
+      workstation. The device will reboot in fastboot mode, awaiting
+      for inputs.
+    \end{itemize}
+  \item You can then interact with the device through the
+    \code{fastboot} command on your workstation
   \end{itemize}
-  \begin{description}
-  \item[getvar:\%s] Reads a variable from the bootloader. It will be
-    returned after the \code{OKAY} command.
-  \item[download:\%08x] Writes data to memory on the device to be used
-    later. The client either replies \code{DATA\%08x} if it succeeded
-    or \code{FAIL}.
-  \item[verify:\%08x] Sends a digital signature to verify the
-    previously downloaded data. Required if the device is secure.
-  \item[flash:\%s] Writes the previously sent data to the given
-    partition.
-  \end{description}
 \end{frame}
 
 \begin{frame}
-  \frametitle{Commands available 2/2}
-  \begin{description}
-  \item[erase:\%s] Erases the given flash partition (sets all the
-    partition to \code{0xFF}
-  \item[boot] Means that what was last downloaded is a root filesystem, 
-    and instructs to boot on it.
-  \item[continue] Orders the device to continue booting as usual
-  \item[reboot] Reboots the device
-  \item[reboot-bootloader] Reboots back in the bootloader mode
-  \item[powerdown] Powers off the device
-  \end{description}
+  \frametitle{Major Fastboot Commands}
+  \begin{itemize}
+  \item You can get all the commands through \code{fastboot -h}
+  \item The more widely used commands are:
+    \begin{description}
+    \item[devices] Lists the fastboot-capable devices
+    \item[boot] Downloads a kernel and boots on it
+    \item[erase] Erases a given flash partition name
+    \item[flash] Writes a given name to a given flash partition
+    \item[getvar] Retrieves a variable from the bootloader
+    \item[continue] Goes on with a regular boot
+    \end{description}
+  \end{itemize}
 \end{frame}
 
 \begin{frame}
-  \frametitle{Defined variables}
+  \frametitle{\code{getvar} Variables}
   \begin{itemize}
   \item Vendor-specific variables must also begin with a upper-case
     letter. Variables beginning with a lower-case letter are reserved
     for the Fastboot specifications and their evolution.
-  \item They are retrieved through the \code{getvar} command.
     \begin{description}
     \item[version] Version of the Fastboot protocol implemented
     \item[version-bootloader] Version of the bootloader