diff --git a/src/source/initializing.md b/src/source/initializing.md
index 0cce5fb..8041a49 100644
--- a/src/source/initializing.md
+++ b/src/source/initializing.md
@@ -110,6 +110,10 @@
     SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="4e22", MODE="0600", OWNER="<username>"
     # fastboot protocol on crespo/crespo4g (Nexus S)
     SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="4e20", MODE="0600", OWNER="<username>"
+    # adb protocol on stingray/wingray (Xoom)
+    SUBSYSTEM=="usb", ATTR{idVendor}=="22b8", ATTR{idProduct}=="70a9", MODE="0600", OWNER="<username>"
+    # fastboot protocol on stingray/wingray (Xoom)
+    SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="708c", MODE="0600", OWNER="<username>"
     # adb protocol on maguro (Galaxy Nexus)
     SUBSYSTEM=="usb", ATTR{idVendor}=="04e8", ATTR{idProduct}=="6860", MODE="0600", OWNER="<username>"
     # fastboot protocol on maguro (Galaxy Nexus)