I guess, this is how screenshot gesture on Paperwhite is handled (found at
/etc/upstart/makexconfig):
Code:
# Output multitouch device
multitouch()
{
IS_TOUCH=$2
echo 'Section "InputDevice"' >> $XCONFFILE
echo " Identifier \"$2\"" >> $XCONFFILE
echo ' Driver "multitouch"' >> $XCONFFILE
# ... skipped by eureka ...
if [ "$(f_platform)" = "yoshime3" ]; then
echo ' Option "ScreenShot" "1"' >> $XCONFFILE
fi
# ... skipped by eureka ...
}