echo external > /proc/driver/domhub/card0/clksel
echo external > /proc/driver/domhub/card1/clksel
echo external > /proc/driver/domhub/card2/clksel
echo external > /proc/driver/domhub/card3/clksel
echo external > /proc/driver/domhub/card4/clksel
echo external > /proc/driver/domhub/card5/clksel
echo external > /proc/driver/domhub/card6/clksel
echo external > /proc/driver/domhub/card7/clksel

