18 lines
271 B
Bash
18 lines
271 B
Bash
#!/bin/sh
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PIN=$1
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VALUE=$2
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PIN_FILE=/sys/class/gpio/gpio$PIN
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if [ -z "$PIN" -o -z "$VALUE" ]; then
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exit 1
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fi
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echo $PIN >/sys/class/gpio/export
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if [ $(cat $PIN_FILE/direction) = "out" ]; then
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echo $VALUE >$PIN_FILE/value
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fi
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echo $PIN >/sys/class/gpio/unexport |