device_phh_treble/phh-prop-handler.sh

#!/system/bin/sh
set -o pipefail

display_usage() {
    echo -e "\nUsage:\n ./phh-prop-handler.sh [prop]\n"
}

if [ "$#" -ne 1 ]; then
    display_usage
    exit 1
fi

prop_value=$(getprop "$1")

xiaomi_toggle_dt2w_proc_node() {
    DT2W_PROC_NODES=("/proc/touchpanel/wakeup_gesture"
        "/proc/tp_wakeup_gesture"
        "/proc/tp_gesture")
    for node in "${DT2W_PROC_NODES[@]}"; do
        [ ! -f "${node}" ] && continue
        echo "Trying to set dt2w mode with /proc node: ${node}"
        echo "$1" >"${node}"
        [[ "$(cat "${node}")" -eq "$1" ]] # Check result
        return
    done
    return 1
}

xiaomi_toggle_dt2w_event_node() {
    for ev in $(
        cd /sys/class/input || return
        echo event*
    ); do
        [ ! -f "/sys/class/input/${ev}/device/device/gesture_mask" ] &&
            [ ! -f "/sys/class/input/${ev}/device/wake_gesture" ] && continue
        echo "Trying to set dt2w mode with event node: /dev/input/${ev}"
        if [ "$1" -eq 1 ]; then
            # Enable
            sendevent /dev/input/"${ev}" 0 1 5
            return
        else
            # Disable
            sendevent /dev/input/"${ev}" 0 1 4
            return
        fi
    done
    return 1
}

if [ "$1" == "persist.sys.phh.xiaomi.dt2w" ]; then
    if [[ "$prop_value" != "0" && "$prop_value" != "1" ]]; then
        exit 1
    fi

    if ! xiaomi_toggle_dt2w_proc_node "$prop_value"; then
        # Fallback to event node method
        xiaomi_toggle_dt2w_event_node "$prop_value"
    fi
    exit $?
fi

if [ "$1" == "persist.sys.phh.oppo.dt2w" ]; then
    if [[ "$prop_value" != "0" && "$prop_value" != "1" ]]; then
        exit 1
    fi

    echo "$prop_value" >/proc/touchpanel/double_tap_enable
    exit
fi

if [ "$1" == "persist.sys.phh.oppo.gaming_mode" ]; then
    if [[ "$prop_value" != "0" && "$prop_value" != "1" ]]; then
        exit 1
    fi

    echo "$prop_value" >/proc/touchpanel/game_switch_enable
    exit
fi

if [ "$1" == "persist.sys.phh.oppo.usbotg" ]; then
    if [[ "$prop_value" != "0" && "$prop_value" != "1" ]]; then
        exit 1
    fi

    echo "$prop_value" >/sys/class/power_supply/usb/otg_switch
    exit
fi