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Accessing hardware peripherals (SDVX)

532 bytes added, 09:34, 17 October 2018
LCD /backlight
</pre>
==== framebuffer ====
It is possible to test the framebuffer visualization using the <code>fbi</code> utility:
 
<pre class="workstation-terminal">
root@sdv03-lite:~# fbi -d /dev/fb0 -T 1 -a startSplash.ppm
root@sdv03-lite:~#
</pre>
 
where:
* -d /dev/fb0 means using the ''fb0'' framebuffer device
* -T 1 means using the ''tty1 console''
* -a means ''autoscale''
 
<code>fbi</code> utility is a linux console framebuffer viewer that supports multiple images format: see [https://linux.die.net/man/1/fbi its page]
 
==== backlight ====
The LCD backlight is PWM controlled and can be changed directly using the <code>sysfs</code> entry:
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