[FE training-materials-updates] flash filesystems: details about block and char interfaces

[Michael Opdenacker]

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

On branch  : master
Link       : http://git.free-electrons.com/training-materials/commit/?id=0d4a002d7c68659df08413a90196c1f493b91abb

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commit 0d4a002d7c68659df08413a90196c1f493b91abb
Author: Michael Opdenacker <michael.opdenacker at free-electrons.com>
Date:   Thu Oct 31 05:03:52 2013 +0100

    flash filesystems: details about block and char interfaces
    
    Signed-off-by: Michael Opdenacker <michael.opdenacker at free-electrons.com>


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

0d4a002d7c68659df08413a90196c1f493b91abb
 .../sysdev-flash-filesystems.tex                   |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex b/slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
index 0797e55..0dea7a5 100644
--- a/slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
+++ b/slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
@@ -15,8 +15,9 @@
   \item The {\bf mtdchar} driver creates a character device for each
     MTD device of the system
     \begin{itemize}
-    \item Usually named \code{/dev/mtdX}, major 90. Even minors for
-      read-write access, odd minors for read-only access
+    \item Usually named \code{/dev/mtdX} or \code{/dev/mtdXro}, major 90.
+      Even minors for read-write access (\code{/dev/mtdX}),
+      odd minors for read-only access (\code{/dev/mtdXro})
     \item Provide \code{ioctl()} to erase and manage the flash
     \item Used by the {\em mtd-utils} utilities
     \end{itemize}
@@ -27,6 +28,7 @@
       number of the MTD device
     \item Allows read/write block-level access. But bad blocks are not
       handled, and no wear leveling is done for writes.
+    \item Primary use: mounting filesystems
     \end{itemize}
   \end{itemize}
 \end{frame}