[bootlin/training-materials updates] master: Embedded Linux: elaborate on the usefulness of /dev/kmsg (785d1ebc)

Michael Opdenacker michael.opdenacker at bootlin.com
Mon Jul 19 20:25:48 CEST 2021


Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/785d1ebc31f0acdc7265ac6c4152bb888503a934

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

commit 785d1ebc31f0acdc7265ac6c4152bb888503a934
Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
Date:   Mon Jul 19 20:25:48 2021 +0200

    Embedded Linux: elaborate on the usefulness of /dev/kmsg
    
    Signed-off-by: Michael Opdenacker <michael.opdenacker at bootlin.com>


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

785d1ebc31f0acdc7265ac6c4152bb888503a934
 slides/sysdev-linux-intro-modules/sysdev-linux-intro-modules.tex | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/slides/sysdev-linux-intro-modules/sysdev-linux-intro-modules.tex b/slides/sysdev-linux-intro-modules/sysdev-linux-intro-modules.tex
index b254b44c..36c0f489 100644
--- a/slides/sysdev-linux-intro-modules/sysdev-linux-intro-modules.tex
+++ b/slides/sysdev-linux-intro-modules/sysdev-linux-intro-modules.tex
@@ -52,7 +52,9 @@
      or completely disabled with the
     \code{quiet} parameter). Example:\\
     \code{console=ttyS0 root=/dev/mmcblk0p2 loglevel=5} 
-  \item Note that you can write to the kernel log from user space too:\\
+  \item Note that you can write to the kernel log from user space too.
+    That's useful when your device's serial console is being monitored
+    for critical messages:
     \code{echo "<n>Debug info" > /dev/kmsg}
   \end{itemize}
 \end{frame}




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