How to control Devices from user space (command line)
This page lists the most important devices and drivers that are specific to this board. And how they can be accessed from user space.
is mapped to
pen down status can be read through
can be selected by adding defaultdisp="lcd" to the boot args
choose from user space by ???
can be selected by adding defaultdisp="dvi" to the boot args
can be selected by adding defaultdisp="venc" to the boot args
echo "1" /sys/devices/virtual/gpio/gpio156/value
echo "0" /sys/devices/virtual/gpio/gpio156/value
device file (use 9600 baud)