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ff874b656b
Start gpio_switch before the boot state is set to up/initialised/done. This way the exported GPIOs are available at the time rc.local is started. Signed-off-by: Mathias Kresin <dev@kresin.me>
43 lines
805 B
Bash
Executable File
43 lines
805 B
Bash
Executable File
#!/bin/sh /etc/rc.common
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# Copyright (C) 2015 OpenWrt.org
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START=94
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STOP=10
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USE_PROCD=1
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load_gpio_switch()
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{
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local name
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local gpio_pin
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local value
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config_get gpio_pin "$1" gpio_pin
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config_get name "$1" name
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config_get value "$1" value 0
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local gpio_path="/sys/class/gpio/gpio${gpio_pin}"
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# export GPIO pin for access
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[ -d "$gpio_path" ] || {
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echo "$gpio_pin" >/sys/class/gpio/export
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# we need to wait a bit until the GPIO appears
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[ -d "$gpio_path" ] || sleep 1
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echo out >"$gpio_path/direction"
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}
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# write 0 or 1 to the "value" field
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{ [ "$value" = "0" ] && echo "0" || echo "1"; } >"$gpio_path/value"
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}
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service_triggers()
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{
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procd_add_reload_trigger "system"
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}
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start_service()
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{
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[ -e /sys/class/gpio/ ] && {
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config_load system
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config_foreach load_gpio_switch gpio_switch
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}
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}
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