diff --git a/debian/changelog b/debian/changelog
index 8222522..4ef25ef 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+odroid-wiringpi (3.13.2) stable; urgency=medium
+
+  * ODROID-M1: Add gpiomem rules
+
+ -- steve <jkhpro1003@gmail.com>  Mon, 18 Apr 2022 16:52:03 +0900
+
 odroid-wiringpi (3.13.1) stable; urgency=medium
 
   * ODROID-COMMON: Add link libgpiod
diff --git a/debian/odroid-wiringpi.postinst b/debian/odroid-wiringpi.postinst
index cbf347d..98a5aa0 100644
--- a/debian/odroid-wiringpi.postinst
+++ b/debian/odroid-wiringpi.postinst
@@ -8,15 +8,22 @@ msg() {
 
 case "$1" in
 	configure)
-	;;
+		if [ -c "/dev/gpiomem" ] && [ "$(stat -c "%a %G" "/dev/gpiomem")" != "660"*"odroid" ]; then
+				msg "Reload udev..."
+				[ -x "$(command -v udevadm)" ] \
+					&& udevadm trigger \
+					|| msg "udevadm not found. Please reboot to take effect"
+		fi
 
+	;;
 	abort-upgrade|abort-remove|abort-deconfigure)
-	;;
 
+	;;
 	*)
 		echo "postinst called with unknown argument \`$1'" >&2
 		exit 1
 	;;
+
 esac
 
 exit 0
diff --git a/udev/rules.d/99-odroid-wiringpi-rockchip.rules b/udev/rules.d/99-odroid-wiringpi-rockchip.rules
new file mode 100644
index 0000000..c6f353d
--- /dev/null
+++ b/udev/rules.d/99-odroid-wiringpi-rockchip.rules
@@ -0,0 +1,2 @@
+# /dev/gpiomem
+SUBSYSTEM=="rk3568-gpiomem", GROUP="odroid", MODE="0660"
diff --git a/wiringPi/Makefile.am b/wiringPi/Makefile.am
index aa0df83..0cf32ab 100644
--- a/wiringPi/Makefile.am
+++ b/wiringPi/Makefile.am
@@ -46,7 +46,8 @@ libwiringPi_la_SOURCES = \
 
 libwiringPi_la_CFLAGS = \
 	@EXTRA_CFLAGS@ \
-	$(LIBCRYPT_CFLAGS)
+	$(LIBCRYPT_CFLAGS) \
+	-DDEVMEM
 
 libwiringPi_la_LDFLAGS = \
 	-version-info @LIBWIRINGPI_VERSION@ \
diff --git a/wiringPi/odroidm1.c b/wiringPi/odroidm1.c
index 38f846b..f544f5f 100644
--- a/wiringPi/odroidm1.c
+++ b/wiringPi/odroidm1.c
@@ -790,11 +790,6 @@ __attribute__ ((unused))static int _digitalRead_gpiod (int pin)
 		printf("gpiod get error\n");
 		gpiod_chip_close(chip);
 	}
-	ret = gpiod_line_request_input(gpiod,CONSUMER);
-	if (ret < 0) {
-		printf("gpiod request error\n");
-		gpiod_line_release(gpiod);
-	}
 	ret = gpiod_line_get_value(gpiod);
 	if (ret < 0) {
 		printf("gpiod get error\n");
@@ -900,11 +895,6 @@ __attribute__ ((unused))static int _digitalWrite_gpiod (int pin, int value)
 		gpiod_chip_close(chip);
 	}
 
-	ret = gpiod_line_request_output(gpiod, CONSUMER, 0);
-	if (ret < 0) {
-		printf("gpiod request error\n");
-		gpiod_line_release(gpiod);
-	}
 	switch (value) {
 	case LOW:
 		ret = gpiod_line_set_value(gpiod, 0);