diff --git a/user_space/cw_disable.sh b/user_space/cw_disable.sh
new file mode 100755
index 0000000..2e8f73d
--- /dev/null
+++ b/user_space/cw_disable.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+home_dir=$(pwd)
+
+if test -d "/sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr"; then
+  cd /sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr
+else 
+  cd /sys/devices/soc0/fpga-axi\@0/fpga-axi\@0\:sdr
+fi
+
+set -x
+#set
+if [[ -n $1 ]]; then
+  echo "3$1" > csma_cfg0
+fi
+
+# show
+cat csma_cfg0
+set +x
+
+cd $home_dir
diff --git a/user_space/cw_max_min_cfg.sh b/user_space/cw_max_min_cfg.sh
new file mode 100755
index 0000000..f7e3b7d
--- /dev/null
+++ b/user_space/cw_max_min_cfg.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+home_dir=$(pwd)
+
+if test -d "/sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr"; then
+  cd /sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr
+else 
+  cd /sys/devices/soc0/fpga-axi\@0/fpga-axi\@0\:sdr
+fi
+
+set -x
+#set
+if [[ -n $1 ]]; then
+  echo "$1" > cw_max_min_cfg
+fi
+
+# show
+cat cw_max_min_cfg
+set +x
+
+cd $home_dir
\ No newline at end of file
diff --git a/user_space/difs_disable.sh b/user_space/difs_disable.sh
new file mode 100755
index 0000000..7d7bf75
--- /dev/null
+++ b/user_space/difs_disable.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+home_dir=$(pwd)
+
+if test -d "/sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr"; then
+  cd /sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr
+else 
+  cd /sys/devices/soc0/fpga-axi\@0/fpga-axi\@0\:sdr
+fi
+
+set -x
+#set
+if [[ -n $1 ]]; then
+  echo "1$1" > csma_cfg0
+fi
+
+# show
+cat csma_cfg0
+set +x
+
+cd $home_dir
diff --git a/user_space/eifs_disable.sh b/user_space/eifs_disable.sh
new file mode 100755
index 0000000..3d7aaf1
--- /dev/null
+++ b/user_space/eifs_disable.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+home_dir=$(pwd)
+
+if test -d "/sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr"; then
+  cd /sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr
+else 
+  cd /sys/devices/soc0/fpga-axi\@0/fpga-axi\@0\:sdr
+fi
+
+set -x
+#set
+if [[ -n $1 ]]; then
+  echo "2$1" > csma_cfg0
+fi
+
+# show
+cat csma_cfg0
+set +x
+
+cd $home_dir
diff --git a/user_space/nav_disable.sh b/user_space/nav_disable.sh
new file mode 100755
index 0000000..f91167c
--- /dev/null
+++ b/user_space/nav_disable.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+home_dir=$(pwd)
+
+if test -d "/sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr"; then
+  cd /sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr
+else 
+  cd /sys/devices/soc0/fpga-axi\@0/fpga-axi\@0\:sdr
+fi
+
+set -x
+#set
+if [[ -n $1 ]]; then
+  echo "0$1" > csma_cfg0
+fi
+
+# show
+cat csma_cfg0
+set +x
+
+cd $home_dir