====== Switch on the backlight using sysfs ======
The following command can be used to turn on the backlight of the display:
<code bash>
root@tqma35 $ echo "1" > /sys/devices/platform/mx3_sdc_fb/graphics/fb0/mx3_sdc_bl0/bl_power
</code>

To check the value it can be read out using ''cat'':
<code bash>
root@tqma35 $ cat /sys/devices/platform/mx3_sdc_fb/graphics/fb0/mx3_sdc_bl0/bl_power
1
</code>
The "1" stands for "Backlight on"