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iface ppp0 inet ppp
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pre-up echo 61 > /sys/class/gpio/export
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pre-up echo out > /sys/class/gpio/gpio61/direction
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pre-up echo 0 > /sys/class/gpio/gpio61/value
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pre-up sleep 7
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post-down echo 1 > /sys/class/gpio/gpio61/value
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post-down echo 61 > /sys/class/gpio/unexport
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