Update README.md

README.md

@@ -107,15 +107,7 @@ const usp = await connect(options);
   await usp.set("Device.WiFi.Radio.1.Name", "radio-1"); // => void
   ```
 
-- Operate - WIP (response message not working yet)
-
-  - operate without no arguments
-
-  ```javascript
-  await usp.operate("Device.SelfTestDiagnostics()");
-  ```
-
-  - operate with arguments (for required args check USP Reference)
+- Operate
 
   ```javascript
   const [ping, cleanPing] = await usp.operate("Device.IP.Diagnostics.IPPing()");
@@ -150,3 +142,43 @@ const usp = await connect(options);
 ```javascript
 await usp.del("Device.NAT.PortMapping.4."); // => void
 ```
+
+
+- Get Supported DM
+  
+```javascript
+await usp.supportedDM("Device.WiFi.")
+```
+- Get Supported Protocols
+  
+```javascript
+await usp.supportedProto("Device.WiFi.")
+```
+
+- Get Instances
+
+```javascript
+await usp.instances("Device.WiFi.")
+```
+
+- Subscribe
+
+```javascript
+const clearSub = await usp.subscribe({ id: '1234', notif: 'ObjectCreation', reference: 'Device.NAT.PortMapping.' }, console.log)
+```
+
+ - optional second argument to callback gives access to full message.
+  ```javascript
+  await usp.subscribe({ id: '1234', notif: 'ObjectCreation', reference: 'Device.NAT.PortMapping.' }, (_, fullMsg) => console.log(fullMsg) )
+  ```
+
+- On (WIP)
+
+  Id can be a string or a regexp. Messages, generally, have their id in the form COMMAND@random_string (i.e. NOTIFY@12345).
+  (Note: does not add subscription to USP model, instead allows for internal monitoring of received messages)
+  Optional second argument to callback gives access to full message.
+
+```javascript
+const clear = usp.on(/NOTIFY.*/, (data, msg) => console.log({ data, msg }))
+```
+