diff --git a/desc/usb_config_cdc.json b/desc/usb_config_cdc.json
new file mode 100644
index 0000000..a08fa28
--- /dev/null
+++ b/desc/usb_config_cdc.json
@@ -0,0 +1,77 @@
+{
+  "class": "0x02",
+  "subclass": "0x00",
+  "protocol_code": "0x00",
+  "max_ep0_packet_size": 64,
+  "vendor_id": "0x0925",
+  "product_id": "0x9050",
+  "device_release_bcd": "0x0100",
+  "vendor_string": "Epagris",
+  "product_string": "Testdevice",
+  "serial_number": "1552",
+  "configurations": [
+    {
+      "id": 1,
+      "is_bus_powered": true,
+      "can_wake_up_host": false,
+      "max_power_mA": 100,
+      "interfaces": [
+        {
+          "id": 0,
+          "class": "0x02",
+          "subclass": "0x02",
+          "protocol_code": "0x01",
+          "additional_interfaces": [
+            {
+              "type": "hfd"
+            },
+            {
+              "type": "acmfd"
+            },
+            {
+              "type": "ufd",
+              "master_interface": 0,
+              "slave_interface": 1
+            },
+            {
+              "type": "cmfd",
+              "data_interface": 1
+            }
+          ],
+          "endpoints": [
+            {
+              "n": 2,
+              "direction": "in",
+              "transfer_type": "interrupt",
+              "max_packet_size": 64,
+              "service_interval": 2
+            }
+          ]
+        },
+        {
+          "id": 1,
+          "class": "0x0A",
+          "subclass": "0x00",
+          "protocol_code": "0x00",
+          "additional_interfaces": [],
+          "endpoints": [
+            {
+              "n": 1,
+              "direction": "in",
+              "transfer_type": "bulk",
+              "max_packet_size": 64,
+              "service_interval": 0
+            },
+            {
+              "n": 1,
+              "direction": "out",
+              "transfer_type": "bulk",
+              "max_packet_size": 64,
+              "service_interval": 0
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}