diff --git a/phh-prop-handler.sh b/phh-prop-handler.sh
index 1382212..35faf34 100644
--- a/phh-prop-handler.sh
+++ b/phh-prop-handler.sh
@@ -58,3 +58,30 @@ if [ "$1" == "persist.sys.phh.xiaomi.dt2w" ]; then
     fi
     exit $?
 fi
+
+if [ "$1" == "persist.sys.phh.oppo.dt2w" ]; then
+    if [[ "$prop_value" -ne 0 && "$prop_value" -ne 1 ]]; then
+        exit 1
+    fi
+
+    echo "$prop_value" >/proc/touchpanel/double_tap_enable
+    exit
+fi
+
+if [ "$1" == "persist.sys.phh.oppo.gaming_mode" ]; then
+    if [[ "$prop_value" -ne 0 && "$prop_value" -ne 1 ]]; then
+        exit 1
+    fi
+
+    echo "$prop_value" >/proc/touchpanel/game_switch_enable
+    exit
+fi
+
+if [ "$1" == "persist.sys.phh.oppo.usbotg" ]; then
+    if [[ "$prop_value" -ne 0 && "$prop_value" -ne 1 ]]; then
+        exit 1
+    fi
+
+    echo "$prop_value" >/sys/class/power_supply/usb/otg_switch
+    exit
+fi
diff --git a/vndk.rc b/vndk.rc
index 6c02976..cbd22fa 100644
--- a/vndk.rc
+++ b/vndk.rc
@@ -18,13 +18,13 @@ on property:persist.sys.phh.mainkeys=*
     setprop qemu.hw.mainkeys ${persist.sys.phh.mainkeys}
 
 on property:persist.sys.phh.oppo.dt2w=*
-    exec_background u:r:phhsu_daemon:s0 root -- /system/bin/sh -c "echo ${persist.sys.phh.oppo.dt2w} > /proc/touchpanel/double_tap_enable"
+    exec_background u:r:phhsu_daemon:s0 root -- /system/bin/phh-prop-handler.sh "persist.sys.phh.oppo.dt2w"
 
 on property:persist.sys.phh.oppo.gaming_mode=*
-    exec_background u:r:phhsu_daemon:s0 root -- /system/bin/sh -c "echo ${persist.sys.phh.oppo.gaming_mode} > /proc/touchpanel/game_switch_enable"
+    exec_background u:r:phhsu_daemon:s0 root -- /system/bin/phh-prop-handler.sh "persist.sys.phh.oppo.gaming_mode"
 
 on property:persist.sys.phh.oppo.usbotg=*
-    exec_background u:r:phhsu_daemon:s0 root -- /system/bin/sh -c "echo ${persist.sys.phh.oppo.usbotg} > /sys/class/power_supply/usb/otg_switch"
+    exec_background u:r:phhsu_daemon:s0 root -- /system/bin/phh-prop-handler.sh "persist.sys.phh.oppo.usbotg"
 
 on property:persist.sys.phh.xiaomi.dt2w=*
     exec_background u:r:phhsu_daemon:s0 root -- /system/bin/phh-prop-handler.sh "persist.sys.phh.xiaomi.dt2w"
\ No newline at end of file