3.0.0
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#!/bin/sh
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CONFIG="led-scheduler"
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SECTION="main"
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LED_ROOT="/sys/class/leds"
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CRON_FILE="/etc/crontabs/root"
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CRON_BEGIN="# BEGIN luci-app-led-scheduler"
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CRON_END="# END luci-app-led-scheduler"
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log() { logger -t led-scheduler "$*"; }
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uci_get() { uci -q get "${CONFIG}.${SECTION}.$1" 2>/dev/null; }
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valid_led_name() {
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case "$1" in
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""|*/*|*".."*|*[!A-Za-z0-9:_.-]*) return 1 ;;
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esac
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return 0
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}
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available_led() {
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valid_led_name "$1" || return 1
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[ -d "${LED_ROOT}/$1" ]
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}
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configured_leds() {
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local section sysfs
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uci -q show system 2>/dev/null |
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sed -n 's/^system\.\([^=]*\)=led$/\1/p' |
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while IFS= read -r section; do
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sysfs="$(uci -q get "system.${section}.sysfs" 2>/dev/null)"
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[ -n "$sysfs" ] || continue
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available_led "$sysfs" || continue
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printf '%s\n' "$sysfs"
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done |
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awk '!seen[$0]++'
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}
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selected_leds() {
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local all selected led
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all="$(uci_get all_system_leds)"
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[ -n "$all" ] || all="1"
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if [ "$all" = "1" ]; then
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configured_leds
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return 0
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fi
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selected="$(uci_get led)"
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for led in $selected; do
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available_led "$led" || continue
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printf '%s\n' "$led"
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done | awk '!seen[$0]++'
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}
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restore_native() {
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if [ -x /etc/init.d/led ]; then
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/etc/init.d/led restart >/dev/null 2>&1
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return $?
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fi
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echo "OpenWrt LED service /etc/init.d/led not found" >&2
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return 1
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}
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turn_off() {
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local led path
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restore_native >/dev/null 2>&1 || true
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selected_leds | while IFS= read -r led; do
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available_led "$led" || continue
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path="${LED_ROOT}/${led}"
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[ -w "${path}/trigger" ] && printf '%s\n' none > "${path}/trigger" 2>/dev/null
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[ -w "${path}/brightness" ] && printf '%s\n' 0 > "${path}/brightness" 2>/dev/null
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done
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log "selected LEDs turned off"
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}
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turn_on() {
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if restore_native; then
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log "native OpenWrt LED configuration restored"
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return 0
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fi
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log "failed to restore native LED configuration"
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return 1
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}
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validate_time() {
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local t="$1" h m
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case "$t" in [0-9][0-9]:[0-9][0-9]) ;; *) return 1 ;; esac
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h="${t%:*}"; m="${t#*:}"
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h="${h#0}"; m="${m#0}"
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[ -n "$h" ] || h=0; [ -n "$m" ] || m=0
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[ "$h" -ge 0 ] 2>/dev/null || return 1
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[ "$h" -le 23 ] 2>/dev/null || return 1
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[ "$m" -ge 0 ] 2>/dev/null || return 1
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[ "$m" -le 59 ] 2>/dev/null || return 1
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return 0
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}
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time_parts() {
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local t="$1" h m
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h="${t%:*}"; m="${t#*:}"
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h="${h#0}"; m="${m#0}"
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[ -n "$h" ] || h=0; [ -n "$m" ] || m=0
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printf '%s %s\n' "$h" "$m"
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}
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strip_cron_block() {
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local tmp="/tmp/led-scheduler-cron.$$"
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mkdir -p "$(dirname "$CRON_FILE")"
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touch "$CRON_FILE"
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awk -v begin="$CRON_BEGIN" -v end="$CRON_END" '
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$0 == begin { skip=1; next }
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$0 == end { skip=0; next }
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!skip { print }
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' "$CRON_FILE" > "$tmp"
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cat "$tmp" > "$CRON_FILE"
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rm -f "$tmp"
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}
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reload_cron() { [ -x /etc/init.d/cron ] && /etc/init.d/cron restart >/dev/null 2>&1; }
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clear_cron() {
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strip_cron_block
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reload_cron
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log "cron entries removed"
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}
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sync_cron() {
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local enabled off_time on_time off_h off_m on_h on_m
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enabled="$(uci_get enabled)"; [ -n "$enabled" ] || enabled="0"
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off_time="$(uci_get off_time)"; on_time="$(uci_get on_time)"
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[ -n "$off_time" ] || off_time="23:00"
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[ -n "$on_time" ] || on_time="07:00"
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strip_cron_block
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if [ "$enabled" != "1" ]; then reload_cron; log "scheduler disabled; cron entries removed"; return 0; fi
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validate_time "$off_time" || { echo "Invalid off_time: $off_time" >&2; return 1; }
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validate_time "$on_time" || { echo "Invalid on_time: $on_time" >&2; return 1; }
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set -- $(time_parts "$off_time"); off_h="$1"; off_m="$2"
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set -- $(time_parts "$on_time"); on_h="$1"; on_m="$2"
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{
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printf '%s\n' "$CRON_BEGIN"
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printf '%s %s * * * /usr/bin/led-control off\n' "$off_m" "$off_h"
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printf '%s %s * * * /usr/bin/led-control on\n' "$on_m" "$on_h"
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printf '%s\n' "$CRON_END"
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} >> "$CRON_FILE"
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reload_cron
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log "cron synchronized: off=${off_time}, on=${on_time}"
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}
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minutes_from_time() {
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local t="$1" h m
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set -- $(time_parts "$t"); h="$1"; m="$2"
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echo $((h * 60 + m))
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}
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apply_current_state() {
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local enabled off_time on_time now_h now_m now off on
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enabled="$(uci_get enabled)"
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if [ "$enabled" != "1" ]; then turn_on; return $?; fi
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off_time="$(uci_get off_time)"; on_time="$(uci_get on_time)"
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[ -n "$off_time" ] || off_time="23:00"
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[ -n "$on_time" ] || on_time="07:00"
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validate_time "$off_time" || return 1
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validate_time "$on_time" || return 1
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off="$(minutes_from_time "$off_time")"; on="$(minutes_from_time "$on_time")"
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if [ "$off" -eq "$on" ]; then turn_on; return $?; fi
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now_h="$(date +%H)"; now_m="$(date +%M)"
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now_h="${now_h#0}"; now_m="${now_m#0}"
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[ -n "$now_h" ] || now_h=0; [ -n "$now_m" ] || now_m=0
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now=$((now_h * 60 + now_m))
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if [ "$off" -lt "$on" ]; then
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if [ "$now" -ge "$off" ] && [ "$now" -lt "$on" ]; then turn_off; else turn_on; fi
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else
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if [ "$now" -ge "$off" ] || [ "$now" -lt "$on" ]; then turn_off; else turn_on; fi
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fi
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}
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list_configured() {
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local section name sysfs trigger
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uci -q show system 2>/dev/null |
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sed -n 's/^system\.\([^=]*\)=led$/\1/p' |
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while IFS= read -r section; do
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name="$(uci -q get "system.${section}.name" 2>/dev/null)"
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sysfs="$(uci -q get "system.${section}.sysfs" 2>/dev/null)"
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trigger="$(uci -q get "system.${section}.trigger" 2>/dev/null)"
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[ -n "$sysfs" ] || continue
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printf '%s %s %s\n' "${name:-$sysfs}" "$sysfs" "${trigger:-unknown}"
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done
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}
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status() {
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echo "enabled=$(uci_get enabled)"
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echo "off_time=$(uci_get off_time)"
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echo "on_time=$(uci_get on_time)"
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echo "all_system_leds=$(uci_get all_system_leds)"
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echo "selected sysfs LEDs:"
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selected_leds | sed 's/^/ - /'
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}
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usage() {
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cat <<'EOF'
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Usage: led-control COMMAND
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Commands:
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list List LEDs defined by OpenWrt System -> LED Configuration
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selected List LEDs currently selected by LED Scheduler
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off Turn selected LEDs off
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on Restore OpenWrt native LED configuration
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apply Apply the correct state for the current time
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sync Synchronize cron entries from UCI configuration
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clear-cron Remove this application's cron entries
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status Show scheduler configuration
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EOF
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}
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case "$1" in
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list) list_configured ;;
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selected) selected_leds ;;
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off) turn_off ;;
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on) turn_on ;;
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apply) apply_current_state ;;
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sync) sync_cron ;;
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clear-cron) clear_cron ;;
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status) status ;;
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*) usage; exit 1 ;;
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esac
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@@ -0,0 +1,13 @@
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{
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"admin/system/led-scheduler": {
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"title": "LED 定时",
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"order": 91,
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"action": {
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"type": "view",
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"path": "led-scheduler/main"
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},
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"depends": {
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"acl": [ "luci-app-led-scheduler" ]
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}
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}
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}
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@@ -0,0 +1,19 @@
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{
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"luci-app-led-scheduler": {
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"description": "Grant access to LED Scheduler",
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"read": {
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"uci": [
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"led-scheduler",
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"system"
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]
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},
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"write": {
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"file": {
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"/usr/bin/led-control": [ "exec" ]
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},
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"uci": [
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"led-scheduler"
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]
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}
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}
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}
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