OpenWrt – Blame information for rev 1
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Rev | Author | Line No. | Line |
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1 | office | 1 | #!/bin/sh /etc/rc.common |
2 | # Copyright (C) 2015 OpenWrt.org |
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3 | |||
4 | START=94 |
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5 | STOP=10 |
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6 | USE_PROCD=1 |
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7 | |||
8 | |||
9 | load_gpio_switch() |
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10 | { |
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11 | local name |
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12 | local gpio_pin |
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13 | local value |
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14 | |||
15 | config_get gpio_pin "$1" gpio_pin |
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16 | config_get name "$1" name |
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17 | config_get value "$1" value 0 |
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18 | |||
19 | local gpio_path="/sys/class/gpio/gpio${gpio_pin}" |
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20 | # export GPIO pin for access |
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21 | [ -d "$gpio_path" ] || { |
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22 | echo "$gpio_pin" >/sys/class/gpio/export |
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23 | # we need to wait a bit until the GPIO appears |
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24 | [ -d "$gpio_path" ] || sleep 1 |
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25 | } |
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26 | |||
27 | # direction attribute only exists if the kernel supports changing the |
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28 | # direction of a GPIO |
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29 | if [ -e "${gpio_path}/direction" ]; then |
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30 | # set the pin to output with high or low pin value |
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31 | { [ "$value" = "0" ] && echo "low" || echo "high"; } >"$gpio_path/direction" |
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32 | else |
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33 | { [ "$value" = "0" ] && echo "0" || echo "1"; } >"$gpio_path/value" |
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34 | fi |
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35 | } |
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36 | |||
37 | service_triggers() |
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38 | { |
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39 | procd_add_reload_trigger "system" |
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40 | } |
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41 | |||
42 | start_service() |
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43 | { |
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44 | [ -e /sys/class/gpio/ ] && { |
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45 | config_load system |
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46 | config_foreach load_gpio_switch gpio_switch |
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47 | } |
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48 | } |