diff --git a/deploy.yml b/deploy.yml
index b1d8011..f4e3bc2 100644
--- a/deploy.yml
+++ b/deploy.yml
@@ -28,6 +28,14 @@
   roles:
     - mounts
 
+- name: usercfg
+  hosts:
+    - suricata
+  become: true
+  roles:
+    - usercfg
+  tags: test
+
 - name: pi_fan_hwpwm
   hosts:
     - suricata
diff --git a/hosts.yml b/hosts.yml
index 7930f2d..2faaf9f 100644
--- a/hosts.yml
+++ b/hosts.yml
@@ -40,6 +40,9 @@ all:
           fstype: "none"
           opts: "bind"
           passno: "0"
+      rpi_cfg:
+        - "enable_uart=1"
+        - "otg_mode=1"
 
     caladan:
       ansible_host: caladan
diff --git a/roles/usercfg/tasks/main.yml b/roles/usercfg/tasks/main.yml
new file mode 100644
index 0000000..8e45158
--- /dev/null
+++ b/roles/usercfg/tasks/main.yml
@@ -0,0 +1,8 @@
+---
+
+- name: configure usercfg.txt
+  lineinfile:
+    path: /media/mmcblk0p1/usercfg.txt
+    line: "{{ item }}"
+    state: present
+  loop: "{{ rpi_cfg }}"